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States of Matter Introduction
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States of Matter Introduction
Explore how solids, liquids and gases behave. Read each question carefully and use evidence from the particle descriptions where asked.
1.A sealed jar contains air. Which statement best explains why the air is matter?
- It has mass and takes up space.
- It is visible in the jar.
- It has a fixed shape.
- It cannot move.
2.Match each particle description to its state of matter: A: particles are tightly packed in a fixed arrangement; B: particles are close together but can move past one another; C: particles are far apart and move freely.
- A
- B
- C
- Liquid
- Solid
- Gas
3.A solid metal cube is placed in a larger box. Which property will it keep?
- Its own shape and volume
- The shape of the box, but not its volume
- The entire volume of the box
- No definite shape or volume
4.A student pours 100 mL of water from a narrow measuring cylinder into a wide bowl. What changes, and what stays the same?
5.Choose every example that is a gas under ordinary conditions: oxygen in air, a wooden ruler, water vapour, cooking oil.
- Oxygen in air
- A wooden ruler
- Water vapour
- Cooking oil
6.The visible cloud above a kettle is often called steam. What is it mostly made of, and what state is that water in?
7.True or false: In a gas, particles are usually close together in a fixed arrangement.
TrueFalse
8.A sealed balloon gets bigger as more air is pumped into it. What does this show about gas particles and the space they occupy?
9.A cold drink can develops water droplets on its outside. Explain where the water came from and name the change of state involved.
10.Complete the explanation: Matter is anything that has and takes up .
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