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Grade 7 · Science

Grade 7 Science diagnostic

15 questions on matter & forces, motion and energy, electricity & circuits, earth & space, biology & genetics and inquiry, plus 3 from Grade 6. Answer what you can, then check your answers to see which topics are secure and what to practise next.

15 questions6 topicsAbout 15 minutesSet 1 of 5

Skip a question if you do not know the answer. It is better than guessing, because it shows what to practise.

1Matter & forcesA model vehicle travels 100 m in 20 s at constant speed. What is its speed in m/s?
m/s
2Matter & forcesA sample has mass 470 g and volume 47 cm³. Calculate density in g/cm³.
g/cm³
3Motion and energyAn object moves at constant velocity -12 m/s for 24 s. Find displacement in m.
m
4Motion and energyA device receives 6700 J and delivers 5360 J of useful energy. Find its efficiency as a percentage.
%
5Electricity & circuitsWaves and electric circuits: which term fits this description? A change in wave direction associated with a change in propagation speed at a boundary.
6Electricity & circuitsWaves and electric circuits: which term fits this description? An interrupted path that prevents a steady current through that path.
7Earth & spaceSpace and the solar system: which term fits this description? A relatively small rocky or metallic body orbiting the Sun.
8Earth & spaceEarth systems: which term fits this description? The breakdown of rock in place at or near Earth's surface.
9Biology & geneticsCells and cell structures: which term fits this description? A membrane-bound compartment used for storage and other functions in cells.
10Biology & geneticsEcosystems and interactions: which term fits this description? An organism that obtains energy by consuming other organisms or their products.
11InquiryThree measurements are 4,5,6 cm. Find their arithmetic mean.
cm
12InquiryWhich instrument is suited to measuring temperature?

From Grade 6

These questions check skills from the grade below, so gaps can be spotted early.

13Inquiry (Grade 6)A ruler starts at 2 cm and an object ends at 9 cm. What is the object length?
cm
14Inquiry (Grade 6)Why keep the release height the same when comparing paper shapes?
15Inquiry (Grade 6)Travel distances are 2, 3 and 4 m. Find the mean.
m