Science review grade 4 worksheet - Free Printable

Task 1: Match the word in column A with their meaning in column B

#### Column A:
1. Seed
2. Embryo
3. Seed coat
4. Germinate
5. Environment

#### Column B:
A. The outer cover that protects the seed
B. When the seed starts to grow
C. Everything around us
D. Part of a plant that can grow into a new plant
E. Part of a seed that grows into a new plant

#### Matching:
1. Seed → D. Part of a plant that can grow into a new plant
- Explanation: A seed is a structure that contains the potential for a new plant to grow.

2. Embryo → E. Part of a seed that grows into a new plant
- Explanation: The embryo is the part of the seed that develops into the new plant.

3. Seed coat → A. The outer cover that protects the seed
- Explanation: The seed coat is the protective outer layer of the seed.

4. Germinate → B. When the seed starts to grow
- Explanation: Germination is the process where a seed begins to grow.

5. Environment → C. Everything around us
- Explanation: The environment refers to all the external conditions (e.g., soil, air, water) that affect the seed and plant.

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Task 2: Complete the sentences using the words in the box

#### Words in the box:
- food store
- factor
- air
- shoot
- root
- swells
- warmth
- up
- down
- absorbs

#### Sentences:

1. When a seed starts to germinate, it ________ water and _________.
- Answer: absorbs, swells
- Explanation: During germination, the seed absorbs water, which causes it to swell as it hydrates.

2. The seed gets energy from its _________.
- Answer: food store
- Explanation: The seed uses stored nutrients (food store) to provide energy for growth during germination.

3. The _________ is the first part of the new plant that starts to grow. It grows _________.
- Answer: root, down
- Explanation: The root is the first part of the plant to emerge during germination, and it grows downward into the soil.

4. The _________ grows next. It grows _________.
- Answer: shoot, up
- Explanation: After the root, the shoot emerges. The shoot grows upward toward the light.

5. Seeds need water, _________ and _________ to germinate.
- Answer: warmth, air
- Explanation: Seeds require water, warmth (temperature), and air (oxygen) for successful germination.

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Final Answers:

#### Task 1:
1. Seed → D
2. Embryo → E
3. Seed coat → A
4. Germinate → B
5. Environment → C

#### Task 2:
1. absorbs, swells
2. food store
3. root, down
4. shoot, up
5. warmth, air

Final Answer:
\boxed{
\begin{array}{ll}
\text{Task 1:} & \text{1. Seed → D, 2. Embryo → E, 3. Seed coat → A, 4. Germinate → B, 5. Environment → C} \\
\text{Task 2:} & \text{1. absorbs, swells; 2. food store; 3. root, down; 4. shoot, up; 5. warmth, air}
\end{array}
}