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Interactive worksheet on states of matter for elementary students, featuring images and activities to learn about solids, liquids, gases, and water cycle processes.

A science worksheet for children to identify states of matter (solid, liquid, gas) with images of lemonade, pouring liquid, a TV, a steaming kettle, a bed, clouds, milk, and a cookie, followed by a diagram labeling water's states and phase changes, and true/false questions.

A science worksheet for children to identify states of matter (solid, liquid, gas) with images of lemonade, pouring liquid, a TV, a steaming kettle, a bed, clouds, milk, and a cookie, followed by a diagram labeling water's states and phase changes, and true/false questions.

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Show Answer Key & Explanations Step-by-step solution for: Unit 5. Matter and energy. worksheet
Let’s go step by step to solve each part of the worksheet.

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Part 1: Look at the items and determine whether they are solids, liquids, or gases.

We’ll look at each picture and think about what state of matter it is.

1. Lemonade in a glass with ice and lemon slice
→ The drink itself is liquid. Ice is solid (frozen water). Lemon slice is solid. But since the main thing shown is the drink, we pick liquid.
*(Note: Sometimes worksheets expect you to choose based on the dominant form — here, it’s mostly liquid.)*

2. Pouring blue liquid from a container
→ Clearly flowing → liquid

3. Old TV set
→ Hard, fixed shape → solid

4. Kettle with steam coming out
→ Steam is water vapor → gas

5. Bed with pillow and blanket
→ All made of fabric, wood, etc. → solid

6. Cloud blowing wind
→ Clouds are made of tiny water droplets or ice crystals, but often taught as “gas” in basic science because they’re in the air. Wind is moving air → gas

7. Milk carton with cow and sun
→ Milk inside is liquid → liquid

8. Chocolate chip cookie
→ Hard, holds its shape → solid

So answers for Part 1:
1. liquid
2. liquid
3. solid
4. gas
5. solid
6. gas
7. liquid
8. solid

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Part 2: Label the diagram with words in the box.

Words given:
ice, water vapour, melting, condensation, evaporation, freezing

Diagram shows:

- Left side: block labeled “Water” → that’s ice (solid)
- Middle: word “Water” → that’s liquid water
- Right side: cloud-like shape → that’s water vapour (gas)

Arrows show changes between them:

a) Arrow from ice to water → this is melting
b) Arrow from water to water vapour → this is evaporation
c) Label under ice → ice
d) Label under water vapour → water vapour
e) Arrow from water to ice → this is freezing
f) Arrow from water vapour to water → this is condensation

So labels:
a) melting
b) evaporation
c) ice
d) water vapour
e) freezing
f) condensation

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Part 3: Read and circle true (T) or false (F).

a) *If we freeze water, it changes into a gas.*
→ Freezing turns water into ice (solid), not gas → False

b) *Solids have a definite shape.*
→ Yes! Solids keep their shape unless broken → True

c) *The three states of water are ice, water and water vapour.*
→ Yes! Solid = ice, Liquid = water, Gas = water vapour → True

d) *Liquids do not have a definite volume.*
→ Actually, liquids DO have definite volume — they take the shape of the container but don’t change amount → False

Answers:
a) F
b) T
c) T
d) F

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Final Answer:

Part 1:
1. liquid
2. liquid
3. solid
4. gas
5. solid
6. gas
7. liquid
8. solid

Part 2:
a) melting
b) evaporation
c) ice
d) water vapour
e) freezing
f) condensation

Part 3:
a) F
b) T
c) T
d) F
Parent Tip: Review the logic above to help your child master the concept of matter and energy worksheet.
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