Download 3rd Grade Science Worksheets | Scholastic - Free Printable

Let's solve each question based on the passage provided in the image. Here is the text of the passage for reference:

> Water is vital, or needed, to all life on Earth. All animals and plants need water to survive. Plants and animals that can't "find" food can get it from soil, air, or water. Water is found in many places: rivers, lakes, ponds, oceans, and even in the air. Water vapor is water that has turned into a gas. It forms when water heats up and evaporates, for example, from pools and farm animals, and the evaporation water to air. Each person needs to drink about two quarts of water every day. Water also exists in solid form as ice. In this form, water is frozen and very cold. When water freezes, it turns into ice. Ice is not liquid anymore. The solid form of water is called ice. Water can also be in liquid form. Liquid water is what we usually see in rivers, lakes, ponds, and oceans. Water vapor is the gas form of water.

Now let’s go through each question one by one and answer them with explanations.

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1. What is the main idea of this story? (Circle the answer)

A. Water is needed for life.
B. Each person needs to drink about two quarts of water each day.
C. Water can be in three forms: liquid, solid, and gas.

✔ Correct Answer: A. Water is needed for life.

Explanation: While options B and C are true statements mentioned in the text, they are details, not the main idea. The main idea is the central message of the entire passage — that water is essential for all life on Earth. This is stated right at the beginning: *"Water is vital, or needed, to all life on Earth."* So, A best captures the overall purpose of the passage.

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2. Name three different forms of water.

✔ Answer: Solid, liquid, gas

Explanation: The passage clearly describes:
- Solid – ice (when water freezes)
- Liquid – water in rivers, lakes, etc.
- Gas – water vapor (when water evaporates)

These are the three states of matter for water.

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3. Water vapor is what form of water? (Circle the answer)

A. solid
B. liquid
C. gas

✔ Correct Answer: C. gas

Explanation: The passage says: *"Water vapor is water that has turned into a gas."* So, water vapor is the gaseous form of water.

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4. What is another name for ice?

✔ Answer: Solid water

Explanation: The passage says: *"The solid form of water is called ice."* So, ice is the solid form of water. Therefore, another name for ice is solid water.

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5. Give two examples of places you might find water vapor.

✔ Answer: Air, above hot water (e.g., over a pool, pond, or pot of boiling water)

Explanation: The passage mentions: *"Water vapor is water that has turned into a gas... It forms when water heats up and evaporates, for example, from pools and farm animals..."* So, water vapor can be found:
- In the air
- Above pools, lakes, ponds, or hot surfaces like boiling water

So valid answers could be:
- In the air
- Over a hot bath or puddle
- Near a steamy shower
- Above a lake on a sunny day

Any two such examples are acceptable.

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6. The word “vital” means: (Circle the answer)

A. needed
B. moved
C. very good

✔ Correct Answer: A. needed

Explanation: The sentence says: *"Water is vital, or needed, to all life on Earth."* The word "or" shows that "needed" is a synonym for "vital". So, "vital" means "needed".

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✔ Final Answers Summary:

1. A. Water is needed for life.
2. Solid, liquid, gas
3. C. gas
4. Solid water
5. Air, above a pool (or any two places where evaporation occurs)
6. A. needed

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