Students reason about everyday matter phenomena using state-change knowledge. Part A has four multiple-choice questions about why a wet towel dries, which statement about states is correct, and what causes frost on a window. Part B has five fill-in-the-blank problems about water existing in all three states, freezing, and the behavior of gas particles.
Explaining everyday phenomena using particle-level reasoning prepares third graders for the deeper physical science investigations ahead.
Style:
States of Matter
Part A: Multiple Choice
Circle the best answer for each question.
1. A wet towel dries on a clothesline. Which process caused the water to disappear?
A) Freezing
B) Condensation
C) Evaporation
D) Melting
2. Which statement about solids, liquids, and gases is correct?
A) Solids flow easily like liquids
B) Liquids have no definite volume
C) Gases have a definite shape
D) Solids keep their shape without a container
3. What causes frost to form on a window on a cold morning?
A) Water evaporates from the glass
B) Water vapor in the air freezes on the cold surface
C) The window melts and creates ice
D) Rain falls directly onto the glass
4. Which change of state requires removing heat from a substance?
A) Melting
B) Evaporation
C) Boiling
D) Freezing
Part B: Fill in the Blank
Write the correct answer on each line.
1. Water can exist as a solid, a liquid, or a gas depending on temperature.
2. Removing heat from liquid water causes it to freeze into ice.
3. The particles in a gas are spread far apart and move quickly.
4. Boiling water on a stove produces steam, which is water in the gas state.
5. Matter can change state but the total amount of matter stays the same.
States of Matter
★ Part A: Multiple Choice
Circle the best answer for each question.
1. A wet towel dries on a clothesline. Which process caused the water to disappear?
A) Freezing
B) Condensation
C) Evaporation
D) Melting
2. Which statement about solids, liquids, and gases is correct?
A) Solids flow easily like liquids
B) Liquids have no definite volume
C) Gases have a definite shape
D) Solids keep their shape without a container
3. What causes frost to form on a window on a cold morning?
A) Water evaporates from the glass
B) Water vapor in the air freezes on the cold surface
C) The window melts and creates ice
D) Rain falls directly onto the glass
4. Which change of state requires removing heat from a substance?
A) Melting
B) Evaporation
C) Boiling
D) Freezing
★ Part B: Fill in the Blank
Write the correct answer on each line.
1) Water can exist as a solid, a liquid, or a gas depending on temperature.
2) Removing heat from liquid water causes it to freeze into ice.
3) The particles in a gas are spread far apart and move quickly.
4) Boiling water on a stove produces steam, which is water in the gas state.
5) Matter can change state but the total amount of matter stays the same.
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9 Questions
12-18 minutes
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