**Class 3 Science Test**

Science is an important subject that helps students understand the world around them. In Class 3, students are introduced to basic scientific concepts and principles. Testing their knowledge and understanding of these concepts is crucial in assessing their progress. Here is a sample test for Class 3 Science:

**Test: Class 3 Science**

**Section 1: Multiple Choice Questions**

1. Which of the following is NOT a source of light?
a) Sun
b) Moon
c) Candle
d) Chair

2. What is the process of a solid changing directly into a gas called?
a) Condensation
b) Evaporation
c) Melting
d) Freezing

3. Which of the following is a natural source of freshwater?
a) River
b) Lake
c) Swimming pool
d) Bathtub

**Section 2: True or False**

1. True or False: Water boils at 100 degrees Celsius.
2. True or False: Plants make their food through a process called photosynthesis.
3. True or False: The Earth is the only planet in our solar system that has an atmosphere.

**Section 3: Short Answer Questions**

1. Explain why ice floats in water.
2. Name three types of simple machines and give an example of each.
3. What is the purpose of a thermometer?

**Section 4: Practical Activity**

Perform the following experiment and answer the questions:

Experiment: Growing a Plant

Materials:
- A small pot
- Soil
- Seeds
- Water

Procedure:
1. Fill the pot with soil.
2. Plant the seeds in the soil.
3. Water the plant regularly.
4. Observe and record the changes in the plant over a period of one week.

Questions:
1. What is the purpose of watering the plant regularly?
2. What changes did you observe in the plant over the week?

This sample test covers various topics such as sources of light, states of matter, natural resources, scientific processes, and practical experiments. It includes multiple-choice questions, true or false statements, short answer questions, and a practical activity. By assessing students using different question formats, their understanding and application of scientific concepts can be evaluated effectively.

Remember to review and discuss the test with the students, providing explanations for correct answers and clarifying any misconceptions. This will help them reinforce their knowledge and improve their understanding of the subject.

Name a gas that froms a solution with water