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Grade 1 · Science · curriculum collection

Grade 1 Science, NGSS domains

5 units for Grade 1 science, organised by NGSS disciplinary core idea domain: Physical Sciences, Life Sciences. Each unit has a short lesson, a practice worksheet and a review worksheet, both with answer keys.

5 units10 worksheets100 questions with answers

Answer-checked and approved on 29 October 2026

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Aligned by StudyBrix at domain level. Not an official publication of, or endorsed by, the standards' authors. Framework: Next Generation Science Standards.

Units in teaching order

01

PS Physical Sciences

Matter & forces

Properties of materials, states of matter, forces and simple measurements of motion and density.

Short lesson: Hard or soft?

Study guide for Kindergarten to Grade 2: 2 worked examples and 2 practice questions. Press gently: a hard object keeps its shape, a soft object squashes or bends.

Press gently: a hard object keeps its shape, a soft object squashes or bends.

Worked example

Which one is softer: a cotton ball or a rock?

A rock is hard: it keeps its shape when you press it. A cotton ball is soft: it squashes when you press it.

Answer: a cotton ball

Read the full study guide

Worksheets

A practice worksheet and a review worksheet, 10 and 10 questions.

Practice worksheet: 10 questions
  1. Water in a pot is heated by an adult until it boils. What forms above the pot?

    1. sand
    2. ice
    3. water vapour (steam)
  2. Which one is harder: a wool scarf or a metal spoon?

    1. a metal spoon
    2. a wool scarf
  3. Which material property is most useful for the outside of a raincoat?

    1. absorbs lots of water
    2. resists water passing through
    3. dissolves in rain
    4. breaks when folded
  4. Is a metal spoon a solid, a liquid or a gas?

    1. a gas
    2. a solid
    3. a liquid
  5. What do we call it when a liquid changes into a solid?

    1. freezing
    2. evaporation
    3. melting
  6. Which one is harder: a wooden block or a feather?

    1. a feather
    2. a wooden block
  7. Ice becomes liquid water. What happened?

    1. condensation
    2. melting
    3. freezing
    4. magnetism
  8. Is the gas in the bubbles of sparkling water a solid, a liquid or a gas?

    1. a solid
    2. a gas
    3. a liquid
  9. Melted chocolate is put in a fridge. What happens?

    1. It becomes solid again.
    2. It boils.
    3. It becomes a gas.
  10. Which one is harder: a wooden block or a cotton ball?

    1. a cotton ball
    2. a wooden block
Answer key
  1. water vapour (steam) Boiling changes liquid water into water vapour, a gas.
  2. a metal spoon A metal spoon is hard: it keeps its shape when you press it. A wool scarf is soft: it squashes when you press it.
  3. resists water passing through
  4. a solid A solid keeps its own shape.
  5. freezing Freezing changes a liquid into a solid.
  6. a wooden block A wooden block is hard: it keeps its shape when you press it. A feather is soft: it squashes when you press it.
  7. melting
  8. a gas A gas spreads out to fill all of its container.
  9. It becomes solid again. Cooling turns the liquid chocolate back into a solid.
  10. a wooden block A wooden block is hard: it keeps its shape when you press it. A cotton ball is soft: it squashes when you press it.
Review worksheet: 10 questions
  1. Is the air inside a balloon a solid, a liquid or a gas?

    1. a liquid
    2. a solid
    3. a gas
  2. Which one is harder: a glass marble or a sponge?

    1. a sponge
    2. a glass marble
  3. Water becomes ice. What happened?

    1. freezing
    2. melting
    3. condensation
    4. evaporation
  4. What do we call it when a solid changes into a liquid?

    1. melting
    2. freezing
    3. evaporation
  5. Is a coin a solid, a liquid or a gas?

    1. a gas
    2. a solid
    3. a liquid
  6. Which one is softer: a rock or a pillow?

    1. a rock
    2. a pillow
  7. Which is a measurement rather than an opinion?

    1. The strip is the nicest.
    2. The strip is 12 cm long.
    3. The strip is perfect.
    4. The strip looks boring.
  8. A chocolate bar is left in a hot car. What will most likely happen?

    1. It will melt.
    2. It will turn into a gas right away.
    3. It will freeze.
  9. Is the invisible water vapour in the air a solid, a liquid or a gas?

    1. a solid
    2. a liquid
    3. a gas
  10. Which one is softer: a pillow or a rock?

    1. a pillow
    2. a rock
Answer key
  1. a gas A gas spreads out to fill all of its container.
  2. a glass marble A glass marble is hard: it keeps its shape when you press it. A sponge is soft: it squashes when you press it.
  3. freezing
  4. melting Melting changes a solid into a liquid.
  5. a solid A solid keeps its own shape.
  6. a pillow A rock is hard: it keeps its shape when you press it. A pillow is soft: it squashes when you press it.
  7. The strip is 12 cm long.
  8. It will melt. Heat melts chocolate from a solid into a soft liquid.
  9. a gas A gas spreads out to fill all of its container.
  10. a pillow A rock is hard: it keeps its shape when you press it. A pillow is soft: it squashes when you press it.
02

PS Physical Sciences

Waves & sound

Wave speed, frequency, period and sound.

Short lesson: Sound and vibrations

Study guide for Grades 1 to 4: 2 worked examples and 2 practice questions. Sounds come from vibrations. Loudness depends on how big the vibrations are; pitch depends on how fast they are.

vibration → sound; bigger vibration → louder

Sounds come from vibrations. Loudness depends on how big the vibrations are; pitch depends on how fast they are.

Worked example

A drum is tapped gently and then hit harder. What happens to the sound?

A harder hit makes bigger vibrations and a louder sound.

Answer: It gets louder.

Read the full study guide

Worksheets

A practice worksheet and a review worksheet, 10 and 10 questions.

Practice worksheet: 10 questions
  1. Which sound is quieter: a jet plane taking off or rustling leaves?

    1. rustling leaves
    2. a jet plane taking off
  2. A quiet whistle and a loud drum can differ in which two ways?

    1. Only colour
    2. Neither sound property
    3. Both pitch and loudness
  3. Which sound is louder: a fire truck siren or rustling leaves?

    1. rustling leaves
    2. a fire truck siren
  4. Why is pressing an ear close to a loud speaker a poor investigation method?

  5. Which sound is louder: a marching band drum or a whisper?

    1. a whisper
    2. a marching band drum
  6. Which can carry ordinary sound across a classroom?

    1. Air
    2. Only visible light
    3. A perfect vacuum
  7. Which sound is quieter: a jet plane taking off or a ticking watch?

    1. a jet plane taking off
    2. a ticking watch
  8. Does hearing a bell mean small pieces of metal travel into your ear?

  9. Which sound is louder: a thunderclap or a ticking watch?

    1. a thunderclap
    2. a ticking watch
  10. Which pair describes two different sound properties?

    1. Pitch and height of the table
    2. Loudness and pitch
    3. Loudness and loudness
Answer key
  1. rustling leaves A jet plane taking off is a loud sound; rustling leaves is a quiet sound.
  2. Both pitch and loudness The sounds can differ in pitch and loudness independently.
  3. a fire truck siren A fire truck siren is a loud sound; rustling leaves is a quiet sound.
  4. It may be unsafe for hearing; a quieter controlled observation is better. Credit hearing safety and a lower-intensity alternative, not exposure testing.
  5. a marching band drum A marching band drum is a loud sound; a whisper is a quiet sound.
  6. Air Sound propagates through a material medium such as air.
  7. a ticking watch A jet plane taking off is a loud sound; a ticking watch is a quiet sound.
  8. No. Vibrations transfer through the air; pieces of bell do not need to travel. Look for distinction between a wave disturbance and bulk transport of the source.
  9. a thunderclap A thunderclap is a loud sound; a ticking watch is a quiet sound.
  10. Loudness and pitch Pitch relates to perceived frequency; loudness relates to perception of sound strength.
Review worksheet: 10 questions
  1. Which sound is quieter: a lawn mower or a pencil writing on paper?

    1. a pencil writing on paper
    2. a lawn mower
  2. A gently plucked elastic band moves back and forth. What is that motion called?

    1. Vibration
    2. Melting
    3. Orbiting
  3. Which sound is louder: a jet plane taking off or a pencil writing on paper?

    1. a pencil writing on paper
    2. a jet plane taking off
  4. Give an example of a sound source and the part that vibrates.

  5. Which sound is louder: a cat purring or a thunderclap?

    1. a cat purring
    2. a thunderclap
  6. Which observation supports the idea that a ruler can vibrate?

    1. Its paint is blue.
    2. Its numbers are printed in black.
    3. Its free end moves rapidly back and forth.
  7. Two bells are made the same way. Which one usually makes a higher-pitched sound?

    1. the small bell
    2. the large bell
  8. Which sound is quieter: a ticking watch or a lawn mower?

    1. a lawn mower
    2. a ticking watch
  9. Which sound is louder: a thunderclap or a cat purring?

    1. a cat purring
    2. a thunderclap
  10. Which sound is louder: a whisper or a marching band drum?

    1. a whisper
    2. a marching band drum
Answer key
  1. a pencil writing on paper A lawn mower is a loud sound; a pencil writing on paper is a quiet sound.
  2. Vibration Repeated back-and-forth motion is vibration.
  3. a jet plane taking off A jet plane taking off is a loud sound; a pencil writing on paper is a quiet sound.
  4. For example, a guitar string vibrates after being plucked. Credit a plausible source and correctly identified vibrating part.
  5. a thunderclap A thunderclap is a loud sound; a cat purring is a quiet sound.
  6. Its free end moves rapidly back and forth. Repeated motion is evidence of vibration rather than just appearance.
  7. the small bell Smaller objects of the same kind usually vibrate faster and make higher sounds.
  8. a ticking watch A lawn mower is a loud sound; a ticking watch is a quiet sound.
  9. a thunderclap A thunderclap is a loud sound; a cat purring is a quiet sound.
  10. a marching band drum A marching band drum is a loud sound; a whisper is a quiet sound.
03

PS Physical Sciences

Light & optics

Light, shadows, reflection, refraction and lenses.

Short lesson: Light and shadows

Study guide for Grades 1 to 4: 2 worked examples and 2 practice questions. Sort objects: does it make its own light? Does light pass through it (transparent) or is it blocked (opaque)?

light travels in straight lines; opaque objects block it

Sort objects: does it make its own light? Does light pass through it (transparent) or is it blocked (opaque)?

Worked example

Which one lets light pass through so you can see clearly through it: clear window glass or a thick book?

Clear window glass is transparent: light passes through it. A thick book is opaque: it blocks light and can make a shadow.

Answer: clear window glass

Read the full study guide

Worksheets

A practice worksheet and a review worksheet, 10 and 10 questions.

Practice worksheet: 10 questions
  1. Which one lets light pass through so you can see clearly through it: clear plastic wrap or a cardboard box?

    1. clear plastic wrap
    2. a cardboard box
  2. Explain why a shadow can move even when the object stays still.

  3. Which one lets light pass through so you can see clearly through it: a metal pan or clean water in a glass?

    1. a metal pan
    2. clean water in a glass
  4. Does a shadow prove that an object makes its own light? Explain.

  5. Which one lets light pass through so you can see clearly through it: a thick book or clear plastic wrap?

    1. a thick book
    2. clear plastic wrap
  6. Which item normally produces its own visible light when switched on?

    1. An unlit book
    2. A torch
    3. A wooden ruler
  7. Which one lets light pass through so you can see clearly through it: a cardboard box or clear window glass?

    1. a cardboard box
    2. clear window glass
  8. What makes a shadow behind an opaque card?

    1. The card blocks some light.
    2. The card sends out darkness.
    3. The card removes gravity.
  9. Which one lets light pass through so you can see clearly through it: a metal pan or clear plastic wrap?

    1. clear plastic wrap
    2. a metal pan
  10. Which sequence explains seeing a red book in a lit room?

    1. Eye → book → lamp
    2. Book → gravity → eye
    3. Lamp → book → eye
Answer key
  1. clear plastic wrap Clear plastic wrap is transparent: light passes through it. A cardboard box is opaque: it blocks light and can make a shadow.
  2. The light source can move, changing which paths are blocked. Accept a change in source position or direction with a coherent explanation.
  3. clean water in a glass Clean water in a glass is transparent: light passes through it. A metal pan is opaque: it blocks light and can make a shadow.
  4. No. A shadow usually shows that the object blocked light from another source. Look for the difference between emitting light and blocking light.
  5. clear plastic wrap Clear plastic wrap is transparent: light passes through it. A thick book is opaque: it blocks light and can make a shadow.
  6. A torch A working torch is a light source; the ruler and book are normally seen by reflected light.
  7. clear window glass Clear window glass is transparent: light passes through it. A cardboard box is opaque: it blocks light and can make a shadow.
  8. The card blocks some light. A shadow is a region reached by less direct light.
  9. clear plastic wrap Clear plastic wrap is transparent: light passes through it. A metal pan is opaque: it blocks light and can make a shadow.
  10. Lamp → book → eye Light illuminates the book and some reflected light reaches the eye.
Review worksheet: 10 questions
  1. Which one makes its own light: a white sheet of paper or a lamp that is switched on?

    1. a lamp that is switched on
    2. a white sheet of paper
  2. Which material usually lets you see a clear image through it?

    1. Thick cardboard
    2. Clear window glass
    3. A wooden board
  3. Which one makes its own light: a mirror or a firefly?

    1. a firefly
    2. a mirror
  4. How could you compare two materials' ability to pass light fairly?

  5. Which one lets light pass through so you can see clearly through it: a brick wall or clean water in a glass?

    1. clean water in a glass
    2. a brick wall
  6. Which is a safe way to investigate a shadow?

    1. Use a torch pointed at a wall away from eyes.
    2. Aim a bright beam into a friend's eyes.
    3. Stare into the Sun.
  7. Which one makes its own light: a mirror or a flashlight that is on?

    1. a flashlight that is on
    2. a mirror
  8. Which one lets light pass through so you can see clearly through it: a wooden door or clean water in a glass?

    1. a wooden door
    2. clean water in a glass
  9. Which one lets light pass through so you can see clearly through it: clean water in a glass or a thick book?

    1. clean water in a glass
    2. a thick book
  10. Which one lets light pass through so you can see clearly through it: a brick wall or clear window glass?

    1. clear window glass
    2. a brick wall
Answer key
  1. a lamp that is switched on A lamp that is switched on gives off its own light. A white sheet of paper only reflects light that shines on it.
  2. Clear window glass Clear glass transmits visible light with relatively little scattering.
  3. a firefly A firefly gives off its own light. A mirror only reflects light that shines on it.
  4. Use the same light, distance and background, and change only the material. Credit controlling the light and geometry rather than judging different setups.
  5. clean water in a glass Clean water in a glass is transparent: light passes through it. A brick wall is opaque: it blocks light and can make a shadow.
  6. Use a torch pointed at a wall away from eyes. A controlled low-intensity classroom setup avoids direct eye exposure.
  7. a flashlight that is on A flashlight that is on gives off its own light. A mirror only reflects light that shines on it.
  8. clean water in a glass Clean water in a glass is transparent: light passes through it. A wooden door is opaque: it blocks light and can make a shadow.
  9. clean water in a glass Clean water in a glass is transparent: light passes through it. A thick book is opaque: it blocks light and can make a shadow.
  10. clear window glass Clear window glass is transparent: light passes through it. A brick wall is opaque: it blocks light and can make a shadow.
04

PS Physical Sciences

Magnetism & induction

Magnets, magnetic fields and electromagnetism.

Short lesson: What does a magnet attract?

Study guide for Grades 1 to 4: 2 worked examples and 2 practice questions. Test the material, not the colour or size: iron and steel are attracted; wood, plastic, glass, aluminium and copper are not.

magnets attract iron and steel

Test the material, not the colour or size: iron and steel are attracted; wood, plastic, glass, aluminium and copper are not.

Worked example

Which object will a magnet pull toward it: a cotton sock or an iron nail?

Magnets attract objects that contain iron, such as steel. An iron nail contains iron; a cotton sock does not.

Answer: an iron nail

Read the full study guide

Worksheets

A practice worksheet and a review worksheet, 10 and 10 questions.

Practice worksheet: 10 questions
  1. Which object will a magnet pull toward it: a rubber eraser or a steel bottle cap?

    1. a steel bottle cap
    2. a rubber eraser
  2. Which object will a magnet pull toward it: a steel bottle cap or a rubber eraser?

    1. a steel bottle cap
    2. a rubber eraser
  3. Which object will a magnet pull toward it: a plastic cup or an iron nail?

    1. a plastic cup
    2. an iron nail
  4. Which object will a magnet pull toward it: a steel bottle cap or a plastic cup?

    1. a steel bottle cap
    2. a plastic cup
  5. Which object will a magnet pull toward it: an aluminium can or a steel safety pin?

    1. a steel safety pin
    2. an aluminium can
  6. Which object will a magnet pull toward it: a steel bottle cap or a wooden spoon?

    1. a wooden spoon
    2. a steel bottle cap
  7. Which object will a magnet pull toward it: a copper wire or a steel safety pin?

    1. a copper wire
    2. a steel safety pin
  8. Which object will a magnet pull toward it: an iron nail or a copper wire?

    1. a copper wire
    2. an iron nail
  9. Which object will a magnet pull toward it: a steel paper clip or a plastic cup?

    1. a plastic cup
    2. a steel paper clip
  10. Which object will a magnet pull toward it: a sheet of paper or a steel bottle cap?

    1. a steel bottle cap
    2. a sheet of paper
Answer key
  1. a steel bottle cap Magnets attract objects that contain iron, such as steel. A steel bottle cap contains iron; a rubber eraser does not.
  2. a steel bottle cap Magnets attract objects that contain iron, such as steel. A steel bottle cap contains iron; a rubber eraser does not.
  3. an iron nail Magnets attract objects that contain iron, such as steel. An iron nail contains iron; a plastic cup does not.
  4. a steel bottle cap Magnets attract objects that contain iron, such as steel. A steel bottle cap contains iron; a plastic cup does not.
  5. a steel safety pin Magnets attract objects that contain iron, such as steel. A steel safety pin contains iron; an aluminium can does not.
  6. a steel bottle cap Magnets attract objects that contain iron, such as steel. A steel bottle cap contains iron; a wooden spoon does not.
  7. a steel safety pin Magnets attract objects that contain iron, such as steel. A steel safety pin contains iron; a copper wire does not.
  8. an iron nail Magnets attract objects that contain iron, such as steel. An iron nail contains iron; a copper wire does not.
  9. a steel paper clip Magnets attract objects that contain iron, such as steel. A steel paper clip contains iron; a plastic cup does not.
  10. a steel bottle cap Magnets attract objects that contain iron, such as steel. A steel bottle cap contains iron; a sheet of paper does not.
Review worksheet: 10 questions
  1. Which object will a magnet pull toward it: an iron bolt or a copper wire?

    1. an iron bolt
    2. a copper wire
  2. Which object will a magnet pull toward it: a cotton sock or a steel safety pin?

    1. a cotton sock
    2. a steel safety pin
  3. Which object will a magnet pull toward it: a sheet of paper or an iron bolt?

    1. a sheet of paper
    2. an iron bolt
  4. Which object will a magnet pull toward it: a rubber eraser or a steel paper clip?

    1. a rubber eraser
    2. a steel paper clip
  5. Which object will a magnet pull toward it: a copper wire or a steel paper clip?

    1. a steel paper clip
    2. a copper wire
  6. Which object will a magnet pull toward it: a steel safety pin or a plastic cup?

    1. a steel safety pin
    2. a plastic cup
  7. Which object will a magnet pull toward it: a steel safety pin or a cotton sock?

    1. a steel safety pin
    2. a cotton sock
  8. Which object will a magnet pull toward it: a steel safety pin or a glass marble?

    1. a steel safety pin
    2. a glass marble
  9. Which object will a magnet pull toward it: an iron nail or a glass marble?

    1. a glass marble
    2. an iron nail
  10. Which object will a magnet pull toward it: an iron bolt or a wooden spoon?

    1. a wooden spoon
    2. an iron bolt
Answer key
  1. an iron bolt Magnets attract objects that contain iron, such as steel. An iron bolt contains iron; a copper wire does not.
  2. a steel safety pin Magnets attract objects that contain iron, such as steel. A steel safety pin contains iron; a cotton sock does not.
  3. an iron bolt Magnets attract objects that contain iron, such as steel. An iron bolt contains iron; a sheet of paper does not.
  4. a steel paper clip Magnets attract objects that contain iron, such as steel. A steel paper clip contains iron; a rubber eraser does not.
  5. a steel paper clip Magnets attract objects that contain iron, such as steel. A steel paper clip contains iron; a copper wire does not.
  6. a steel safety pin Magnets attract objects that contain iron, such as steel. A steel safety pin contains iron; a plastic cup does not.
  7. a steel safety pin Magnets attract objects that contain iron, such as steel. A steel safety pin contains iron; a cotton sock does not.
  8. a steel safety pin Magnets attract objects that contain iron, such as steel. A steel safety pin contains iron; a glass marble does not.
  9. an iron nail Magnets attract objects that contain iron, such as steel. An iron nail contains iron; a glass marble does not.
  10. an iron bolt Magnets attract objects that contain iron, such as steel. An iron bolt contains iron; a wooden spoon does not.
05

LS Life Sciences

Living things

Living and non-living things, what living things need, senses, habitats and animal groups.

Short lesson: Animal groups

Study guide for Grades 1 to 4: 2 worked examples and 2 practice questions. Sort animals by features you can check: milk for babies, feathers, gills, six legs, dry scales or moist skin.

mammals · birds · fish · insects · reptiles · amphibians

Sort animals by features you can check: milk for babies, feathers, gills, six legs, dry scales or moist skin.

Worked example

Which animal is a bird: an eagle or a cod?

An eagle is a bird: it has feathers and lays eggs. A cod is a fish.

Answer: an eagle

Read the full study guide

Worksheets

A practice worksheet and a review worksheet, 10 and 10 questions.

Practice worksheet: 10 questions
  1. What does a seed need to start growing?

    1. a cold freezer
    2. a dry plastic bag
    3. water and warmth
  2. Which animal is a fish: an owl or a trout?

    1. an owl
    2. a trout
  3. Which body part do you use most to see a rainbow?

    1. eyes
    2. ears
    3. nose
  4. Which one is a living thing: a rabbit or a coin?

    1. a rabbit
    2. a coin
  5. Which stage comes first in the life cycle of a frog: adult frog or young frog?

    1. adult frog
    2. young frog
  6. Living things and their needs: which term fits this description? A plant structure that usually anchors the plant and takes in soil water.

    1. Root
    2. Life cycle
    3. Predator
    4. Camouflage
  7. Draw an animal and its home. Tell how the home helps it.

  8. Which animal is an insect: a crocodile or a butterfly?

    1. a butterfly
    2. a crocodile
  9. Which body part do you use most to notice the scent of a flower?

    1. ears
    2. nose
    3. tongue
  10. Which one is a living thing: a chair or a cactus?

    1. a chair
    2. a cactus
Answer key
  1. water and warmth Most seeds need water and warmth to sprout.
  2. a trout A trout is a fish: it lives in water and breathes with gills. An owl is a bird.
  3. eyes Sense: sight. Body part: eyes.
  4. a rabbit A rabbit is living: it grows, needs food and water, and can make more of its own kind. A coin is not living.
  5. young frog Life cycle of a frog: egg → tadpole → young frog → adult frog.
  6. Root Root: A plant structure that usually anchors the plant and takes in soil water.
  7. Accept a matching animal and habitat, such as a bird and its nest that keeps eggs safe. Accept any accurate, well-supported response; this sample is one possibility.
  8. a butterfly A butterfly is an insect: it has six legs and three body parts. A crocodile is a reptile.
  9. nose Sense: smell. Body part: nose.
  10. a cactus A cactus is living: it grows, needs food and water, and can make more of its own kind. A chair is not living.
Review worksheet: 10 questions
  1. Which animal is a fish: a shark or a horse?

    1. a horse
    2. a shark
  2. Which body part do you use most to know that honey is sweet?

    1. eyes
    2. nose
    3. tongue
  3. Which stage comes first in the life cycle of a ladybug: egg or adult ladybug?

    1. egg
    2. adult ladybug
  4. Which one is a living thing: a toy car or a rabbit?

    1. a rabbit
    2. a toy car
  5. Living things and their needs: which term fits this description? An animal in the group including frogs, toads and salamanders.

    1. Seed
    2. Amphibian
    3. Omnivore
    4. Camouflage
  6. Which young animal grows up to be a frog?

    1. a chick
    2. a kitten
    3. a tadpole
  7. Which animal is a bird: a duck or a dolphin?

    1. a duck
    2. a dolphin
  8. Which sense helps you know that honey is sweet?

    1. hearing
    2. taste
    3. touch
  9. Which stage comes first in the life cycle of a bean plant: pod with new seeds or seedling?

    1. pod with new seeds
    2. seedling
  10. Which one is a living thing: a cup or a worm?

    1. a cup
    2. a worm
Answer key
  1. a shark A shark is a fish: it lives in water and breathes with gills. A horse is a mammal.
  2. tongue Sense: taste. Body part: tongue.
  3. egg Life cycle of a ladybug: egg → larva → pupa → adult ladybug.
  4. a rabbit A rabbit is living: it grows, needs food and water, and can make more of its own kind. A toy car is not living.
  5. Amphibian Amphibian: An animal in the group including frogs, toads and salamanders.
  6. a tadpole A tadpole grows legs and becomes a frog.
  7. a duck A duck is a bird: it has feathers and lays eggs. A dolphin is a mammal.
  8. taste Sense: taste. Body part: tongue.
  9. seedling Life cycle of a bean plant: seed → seedling → adult plant with flowers → pod with new seeds.
  10. a worm A worm is living: it grows, needs food and water, and can make more of its own kind. A cup is not living.