The same 20-question worksheet on chemistry in Support, Core and Challenge versions. Question by question, each version keeps the topic and changes the difficulty.
Easier questions on the same topics, for students who need more practice with the basics.
Questions
20 (20 medium)
Grade range
Grades 8 to 12
Topics
Chemistry
Sample questions
Atomic structure and chemical language: which term fits this description?
The smallest unit of an element that retains that element's chemical identity.
Atomic structure and chemical language: which term fits this description?
A substance whose atoms all have the same atomic number.
Atomic structure and chemical language: which term fits this description?
A pure substance made from two or more elements chemically combined in a fixed ratio.
Core
Questions at the expected level for the grade.
Questions
20 (20 medium)
Grade range
Grades 8 to 12
Topics
Chemistry
Sample questions
Atomic structure and chemical language: which term fits this description?
The smallest unit of an element that retains that element's chemical identity.
Atomic structure and chemical language: which term fits this description?
A substance whose atoms all have the same atomic number.
Atomic structure and chemical language: which term fits this description?
A pure substance made from two or more elements chemically combined in a fixed ratio.
Challenge
Harder questions on the same topics, for students who are ready to stretch.
Questions
20 (20 challenge)
Grade range
Grades 9 to 12
Topics
Chemistry
Sample questions
A hypothetical element has isotopes of mass 32 u (30%) and 38 u (70%). Calculate its mean atomic mass in u.
A sample has mass 68 g and molar mass 68 g/mol. Find its amount in mol.
Dilute 30 mL of a 5.6 mol/L solution to 0.8 mol/L without losing solute. Find the final volume in mL.
Using the three versions
Start everyone with the same short explanation, then hand out Support, Core or Challenge.
Question numbers line up across the versions, so you can go through the answers with the whole class.
The PDF has a cover page and each version on its own pages; the answer keys PDF has all three keys.