Solution to the "States of Matter" Worksheet
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Step 1: Write the three states of matter in the boxes below:
The three states of matter are:
1.
Solid
2.
Liquid
3.
Gas
✔ Fill in the boxes with these words (order may vary, but all three must be present).
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Step 2: Label each picture as one of the three states of matter:
Let’s analyze each image:
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Top Row (Molecular Models):
1.
First beaker (left):
- Molecules are tightly packed and in a fixed position.
- This is characteristic of a
solid.
✔ Label:
Solid
2.
Second beaker (middle):
- Molecules are close together but can move around. They take the shape of the container.
- This is a
liquid.
✔ Label:
Liquid
3.
Third beaker (right):
- Molecules are far apart and moving freely. They fill the entire container.
- This is a
gas.
✔ Label:
Gas
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Bottom Row (Real-World Objects):
4.
Rock:
- Has a definite shape and volume.
- This is a
solid.
✔ Label:
Solid
5.
Milk in a bottle:
- Takes the shape of the container but has a definite volume.
- This is a
liquid.
✔ Label:
Liquid
6.
Wind and clouds:
- Air (wind) and clouds represent gases.
- Clouds are made of water vapor (a gas), and wind is moving air (gas).
✔ Label:
Gas
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Step 3: Answer the question: What happened to the ice when exposed to different environments?
This question is asking about
changes in state due to temperature or environment.
Answer:
When ice (a solid) is exposed to different environments, it can undergo
phase changes:
- In a
cold environment (e.g., freezer), the ice remains a
solid because the temperature is below freezing (0°C).
- In a
room-temperature environment, the ice
melts and turns into
liquid water because heat energy causes the molecules to move faster and break apart.
- In a
hot environment or under direct sunlight, the liquid water can
evaporate and turn into
water vapor (gas).
So, depending on the environment:
- Ice → Water (melting)
- Water → Water vapor (evaporation)
These changes happen due to
temperature changes affecting the motion and arrangement of molecules.
✔ Final Answer (written response):
> When ice is exposed to different environments, it changes state. In cold conditions, it stays as a solid. In warmer conditions, it melts into liquid water. If heated further, it evaporates into water vapor (a gas). These changes happen because heat energy increases molecular movement, causing phase transitions.
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✔ Final Completed Worksheet Summary:
Three States of Matter:
- Solid
- Liquid
- Gas
Labels for Pictures:
1. Solid (molecules packed tight)
2. Liquid (molecules flowing)
3. Gas (molecules spread out)
4. Rock → Solid
5. Milk → Liquid
6. Wind/clouds → Gas
Answer to Question:
Ice melts into liquid water in warm environments and can turn into water vapor in hot environments due to heat causing phase changes.
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Parent Tip: Review the logic above to help your child master the concept of 3 states of water worksheet.
