Matter comes in three main forms. A solid, such as a rock or a book, keeps its own shape. A liquid, such as water or milk, flows and takes the shape of its container. A gas, such as air or steam, spreads out to fill whatever space it is in, and you often cannot see it. On this grade 1 worksheet each line names one thing, and your child circles solid, liquid or gas.
Every sheet has three solids, three liquids and two gases, in a mixed order. Ask your child to pour water into different cups and watch it change shape, then do the same with a block, to see the difference for themselves.
What your child will learn
Tell a solid, a liquid and a gas apart
Know that a solid keeps its shape
Know that a liquid pours and a gas spreads out
Name everyday examples of each
NGSS standard: 2-PS1-1
Worked example
Milk pours and takes the shape of the glass, so it is a liquid. A rock keeps its shape, so it is a solid.
Common mistake
Calling air nothing, or calling a gas a liquid because it moves.
Helpful hint
Does it keep its shape, pour, or spread out to fill the space?