Solids & Liquids — Answer Key
Part A: Multiple Choice
Circle the best answer for each question.
1. Why do we store milk in a jug and not in a bag with holes?
A) milk is a solid
B) milk would leak out
C) jugs look nicer
D) bags are too small
Milk is a liquid, so any hole lets it flow out and spill all over the floor.
2. What is the best dish for hot tomato soup?
A) a flat paper plate
B) a solid deep bowl
C) a bag with holes
D) a stack of blocks
A deep bowl has solid sides that keep the liquid soup inside while you eat it.
3. Why are windows made from solid glass and not water?
A) water would flow away
B) glass is cheaper
C) water is too cold
D) glass is a liquid
Glass is a solid and keeps its flat shape, but water would flow out of the window frame.
4. Which is the best way to carry blocks to your friend?
A) in a cup of water
B) in a box with a lid
C) on a paper napkin
D) in cupped hands full of juice
A box with a lid keeps the solid blocks together so none fall out on the way.
Part B: Fill in the Blank
Write the correct answer on each line.
1. To hold water, we pick a cup with no holes.
A cup must be closed on all sides, or the liquid water flows right through it.
2. We carry soup in a deep bowl so it stays inside.
A deep bowl keeps liquid soup from spilling over, because its sides are solid and high.
3. A backpack is made of a solid so it keeps its shape.
Solid cloth holds its form, so your backpack can carry books without losing shape.
4. Raincoats are solid to keep your clothes dry.
A solid coat stops liquid rain from passing through, so your clothes stay dry under it.
5. We use a lid on a pot so the soup does not spill.
A solid lid keeps the liquid soup inside, even when the pot is shaken or moved.