worksheet of class 6 chapter matter as particles.docx

haseeb nazar for teach a lession of chapter 6 matter and liquid and gas

1. Chapter : Matter as particles
**Name: ___________________________**
Class : VI ______'c

**1. State of Matter**
a. Ice is an example of which state of matter?
- Solid
- Liquid
- Gas
b. Water at room temperature is an example of which state of matter?
- Solid
- Liquid
- Gas
c. Oxygen in a tank is an example of which state of matter?
- Solid
- Liquid
- Gas
**2. Properties of Matter**
a. Solids have a definite ________ and a definite ________
b. Liquids have a definite ________ but no definite ________.
c. Gases have no definite ________ and no definite ________.
3. Changes in State**
a. When water freezes, it changes from a ______________ to a ____________
b. When water boils, it changes from a _____________ to a ____________
c. When dry ice (solid carbon dioxide) sublimes, it changes from a ____________ to a __________.

2. **4. Examples**
Provide one example of each state of matter:
- Solid: _______________________
- Liquid: _______________________
- Gas: _______________________

**5. Real-World Observations**
Describe an everyday situation where you can observe a solid, liquid, and gas in action.


**6. Changes in State**
Describe a situation where you can see a substance changing from one state of matter to another.


**7. Application**
Explain why it is essential to understand the different states of matter in everyday life.




**Title: Understanding the Particle Model of Matter**

**Section 1: Solids**

3. 1. Label the diagram of solid particles, showing them closely packed together.
2. Describe the arrangement of particles in a solid.
3. Explain why solids have a definite shape.
4. Give an example of a common solid substance.
**Section 2: Liquids**
5. Label the diagram of liquid particles, showing them slightly less closely packed.
6. Describe the arrangement of particles in a liquid.
7. Explain why liquids take the shape of their container.
8. Give an example of a common liquid substance.
**Section 3: Gases**
9. Label the diagram of gas particles, showing them widely spaced apart.
10. Describe the arrangement of particles in a gas.
11. Explain why gases do not have a definite shape.
12. Give an example of a common gas substance.
**Section 4: Changes in State**
13. Describe what happens to the arrangement of particles when a solid melts into a liquid.
14. Explain what occurs at the particle level when a liquid evaporates into a gas.
15. Provide examples of processes that involve changes between the three states of matter.
**Section 5: Comparing Properties**
16. Compare the density of particles in solids, liquids, and gases.
17. Compare the compressibility of solids, liquids, and gases.
18. Explain how the motion of particles differs in solids, liquids, and gases.
19.Summarize the key differences between the particle model of solids, liquids, and gases.
20.Explain why the particle model is important in understanding the behavior of matter?

4. **States of Matter Worksheet
**Part 1: Fill in the Blanks**
1. When a solid turns into a liquid, it undergoes ________________.
2. The process of a liquid turning into a gas is called ____________________.
3. The change of a gas into a liquid is called ____________________.
4. The temperature at which a substance changes from a solid to a liquid is known as its
________________ point.
5. When a gas changes directly into a solid without becoming a liquid first, it's called
____________________.
**Part 2: Puzzle**

Unscramble the words to reveal states of matter:

6. GESAS________________
7. IDULQI: ________________
8. DOLSI: ________________
**Part 3: Match the Column**
Match the correct state of matter with its description:
**A. Solid** **B. Liquid** **C. Gas**
1. Takes the shape of its container.
2.Has a definite volume but not a definite shape.
3. Has neither a definite shape nor a definite volume.
4. . Particles are tightly packed and vibrate in place.
5. Particles are spread out and move freely.

5. **Diffusion Worksheet**
**Fill in the Blanks:**
1. Diffusion is the movement of particles from an area of __________ concentration to an area of
__________ concentration.
2. The rate of diffusion is generally faster when the temperature is __________.
3. In the human body, oxygen enters cells and carbon dioxide exits through the process of __________.
**Multiple Choice Questions (MCQs):**
5. What is the primary driving force behind diffusion?
a) Gravity
b) Pressure
c) Concentration gradient
d) Temperature
6. Which of the following factors does NOT affect the rate of diffusion?
a) Temperature
b) Particle size
c) Molecular weight
d) Surface area
8. Osmosis is a specific type of diffusion involving the movement of:
a) Ions
b) Water molecules
c) Gases
d) Large particles
9. In a closed container, if a gas is released at one end, it will:
a) Remain concentrated at the release point
b) Spread evenly throughout the container

6. c) Concentrate at the opposite end
d) Remain stationary
**Objective Type Worksheet: More Evidence for the Particle Model of Matter**

**Instructions:**
1. Read each question carefully.
2. Choose the correct option (A, B, C, or D) that best answers the question.
3. Mark your answers on the provided lines.
**Questions:**
1. What is the primary purpose of the particle model of matter?
A. To study chemical reactions
B. To understand the behavior of substances
C. To explore the behavior of electrical circuits
D. To explain the behavior of light
2. In a solid, particles are:
A. Tightly packed and vibrate in fixed positions.
B. Loosely packed and move freely.
C. Randomly scattered with no fixed pattern.
D. Absent, there are no particles in solids.
3. When a solid is heated, what happens to its particles?
A. They stay in fixed positions.
B. They move more vigorously.
C. They disappear.
D. They change color.

7. 4. The term "thermal expansion" is best described as:
A. The shrinking of matter when heated.
B. The change in state from a liquid to a gas.
C. The increase in volume when matter is heated.
D. The formation of bubbles in a liquid.
5. When you can smell perfume even if you're not right next to the bottle, it's because of:
A. Particle vibrations in the bottle.
B. Magic particles.
C. Particle diffusion.
D. Particle disappearance.
6. What is the process where a liquid turns into a gas, often caused by heating?
A. Evaporation
B. Condensation
C. Melting
D. Solidification
7. The formation of dew on grass in the morning is an example of:
A. Evaporation
B. Condensation
C. Sublimation
D. Solidification
8. Bubbles forming in a glass of soda when opened can be explained by:
A. The glass being dirty.
B. The cooling effect of the soda.
C. The particle model and the release of gas from the liquid.
D. The glass being too cold.

8. 9. What happens to the particles in a balloon when it is inflated with air?
A. The particles remain still.
B. The particles shrink.
C. The particles move closer together.
D. The particles move apart and become more energetic.
10. Ice changing to water vapor without passing through the liquid state is known as:
A. Condensation
B. Melting
C. Sublimation
D. Freezing
**Bonus Question:**
11. When you place a metal spoon in a hot cup of tea, the spoon feels hot to touch. Explain this
phenomenon using the particle model.

Certainly, here's an objective type worksheet on Brownian motion of particles in a smoke cell
experiment:

**Brownian Motion in a Smoke Cell Experiment Worksheet**
**Objective: To test your understanding of Brownian motion in a smoke cell experiment.**
**1. What is Brownian motion?**
- [ ] A type of dance performed by particles.
- [ ] The motion of particles suspended in a fluid due to collisions with other particles.
- [ ] The motion of planets in our solar system.
**2. Who first observed Brownian motion in 1827?**
- [ ] Isaac Newton
- [ ] Albert Einstein

9. - [ ] Robert Brown
**3. In a smoke cell experiment, what is used as the source of smoke?**
- [ ] A candle
- [ ] An incense stick
- [ ] A flashlight
**4. Why is a microscope used in a smoke cell experiment?**
- [ ] To burn the smoke particles.
- [ ] To observe the motion of smoke particles more closely.
- [ ] To create more smoke.
**5. What is the driving force behind the random motion of smoke particles in the smoke cell?**
- [ ] Magnetism
- [ ] Gravity
- [ ] Collisions with air molecules
**6. How can you describe the motion of smoke particles in the smoke cell due to Brownian motion?**
- [ ] Smooth and predictable
- [ ] Random and erratic
- [ ] Stationary
**7. True or False: Brownian motion has applications in various scientific fields.**
- [ ] True
- [ ] False
**8. What is the primary reason for the random motion of particles in Brownian motion?**
- [ ] Magnetic forces
- [ ] Collisions with other particles
- [ ] Chemical reactions

10. **9. What does the kinetic theory of gases explain about Brownian motion?**
- [ ] It doesn't relate to the kinetic theory of gases.
- [ ] How gas molecules move in a straight line.
- [ ] How the random motion of particles is due to collisions with gas molecules.
**10. What is the main takeaway from studying Brownian motion in a smoke cell experiment?**
- [ ] Smoke particles are alive.
- [ ] Particles move smoothly in a straight line.
- [ ] Particles exhibit random motion due to collisions with gas molecules.