To solve the problem, we need to fill in the blanks with appropriate words from the word bank provided. The goal is to correctly describe the properties of different states of matter (solid, liquid, gas) based on their characteristics. Let's go through each sentence step by step:
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Word Bank:
- Solid
- Liquid
- Gas
- Definite shape
- Indefinite shape
- Fixed volume
- Variable volume
- High density
- Low density
- Strong intermolecular forces
- Weak intermolecular forces
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Sentences to Complete:
1.
It has a definite shape and volume.
- This describes a
solid because solids have both a definite shape and a fixed volume.
-
Answer: Solid
2.
It has a definite volume but not a definite shape.
- This describes a
liquid because liquids have a fixed volume but take the shape of their container.
-
Answer: Liquid
3.
The particles are packed closely together.
- Particles in a solid are packed closely together due to strong intermolecular forces.
-
Answer: Solid
4.
It occupies spaces.
- Gases occupy spaces because they expand to fill any container.
-
Answer: Gas
5.
The atoms move around randomly.
- In gases, atoms or molecules move freely and randomly due to weak intermolecular forces.
-
Answer: Gas
6.
Gases are highly compressible.
- Gases can be compressed because their particles are far apart and have weak intermolecular forces.
-
Answer: Gas
7.
The particles are packed loosely.
- In liquids, particles are packed more loosely than in solids but more tightly than in gases.
-
Answer: Liquid
8.
This is an example of a gas.
- Any substance that behaves like a gas fits here. For example, air or oxygen.
-
Answer: Gas
9.
Solids have high density.
- Solids have high density because their particles are closely packed together.
-
Answer: Solid
10.
Liquids have variable volume.
- Liquids have a fixed volume but can change shape, so their volume is considered variable in terms of how they fit into containers.
-
Answer: Liquid
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Final Answers:
1. Solid
2. Liquid
3. Solid
4. Gas
5. Gas
6. Gas
7. Liquid
8. Gas
9. Solid
10. Liquid
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Explanation:
-
Solids have a definite shape and volume because their particles are held tightly together by strong intermolecular forces.
-
Liquids have a definite volume but take the shape of their container because their particles are less tightly packed and can flow.
-
Gases have neither a definite shape nor a fixed volume because their particles are far apart and move freely.
By understanding these properties, we can correctly match the sentences with the appropriate words from the word bank.
Final Answer:
\boxed{Solid, Liquid, Solid, Gas, Gas, Gas, Liquid, Gas, Solid, Liquid}
Parent Tip: Review the logic above to help your child master the concept of 2nd grade science worksheet on matter.
