Worksheet 1: Growing Plants
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Section A: Tick (√) the correct answers.
1.
New plants germinate from
- (i) seeds
- (ii) roots
- (iii) both of these
- (iv) none of these
Explanation:
New plants typically germinate from seeds. Seeds contain the embryo and stored food necessary for the initial growth of a plant. While roots can sometimes produce new plants through vegetative propagation, this is not the primary method of germination.
Correct Answer:
(i) seeds
2.
A very small plant is called
- (i) nursery
- (ii) seed
- (iii) seedling
- (iv) shrub
Explanation:
A very small plant that has recently sprouted from a seed is called a "seedling." A "nursery" is a place where plants are grown, a "seed" is the starting point before germination, and a "shrub" is a type of mature plant.
Correct Answer:
(iii) seedling
3.
Chemicals that are sprayed on crops to protect them from being destroyed by pests are called
- (i) manure
- (ii) pesticides
- (iii) fertilisers
- (iv) none of these
Explanation:
Chemicals used to protect crops from pests are called "pesticides." Manure is organic matter used as fertilizer, and fertilizers provide nutrients to plants but do not protect against pests.
Correct Answer:
(ii) pesticides
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Section B: Match the following.
1.
Rose
- (i) grows from seed
- (ii) grows from stem
- (iii) grows from root
Explanation:
Roses are often propagated by taking cuttings from their stems, which are then rooted to grow new plants. This method is known as vegetative propagation.
Match:
Rose → (ii) grows from stem
2.
Sweet potato
- (i) grows from seed
- (ii) grows from stem
- (iii) grows from root
Explanation:
Sweet potatoes are grown from their underground storage roots, which are replanted to produce new plants. This method is efficient for propagating sweet potatoes.
Match:
Sweet potato → (iii) grows from root
3.
Maize
- (i) grows from seed
- (ii) grows from stem
- (iii) grows from root
Explanation:
Maize (corn) is primarily grown from seeds. Farmers plant maize seeds in the soil, and these seeds germinate to form new plants.
Match:
Maize → (i) grows from seed
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Final Answers:
####
Section A:
1. (i) seeds
2. (iii) seedling
3. (ii) pesticides
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Section B:
1. Rose → (ii) grows from stem
2. Sweet potato → (iii) grows from root
3. Maize → (i) grows from seed
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Summary:
-
Section A:
1. (i) seeds
2. (iii) seedling
3. (ii) pesticides
-
Section B:
1. Rose → (ii) grows from stem
2. Sweet potato → (iii) grows from root
3. Maize → (i) grows from seed
Final Answer Boxed:
\[
\boxed{
\text{A. 1. (i), 2. (iii), 3. (ii)} \\
\text{B. 1. (ii), 2. (iii), 3. (i)}
}
\]
Parent Tip: Review the logic above to help your child master the concept of science worksheet for grade 5.
