Process Skills on Cycles

Worksheet 4



3. It is to attract insects so that they will pollinate the flowers.

4a. By insects
4b. By wind

5. It protects the flower while it is still a bud

Worksheet 5
1a. It is known as pollination.
1b. Insects like butterflies or bees will carry part A to another flower OR It is blown to another flower by the wind. (AMV)

2a. Fertilisation.
2b. The petals will shrivel up and the ovary will develop into a fruit.

3. B: style C: ovule D: ovary E: stigma

4. It is a pollen grain and it comes from the anther.

Worksheet 6
1. By splitting
When the pod dries up, it bursts open to scatter the seeds.

2. By wind
The crown of hair on the seeds are light and hence, allows it to be easily picked up and carried away by the wind.

3. By animals/people
Animals/people eat the juicy fruit and spit/pass out the seeds in another place.

4. By wind
It is light and the wing-like structure of the fruit allows it to be carried by wind easily.

5. By animals/people
The tiny stiff hairs hook/cling onto the fur/clothings of animals/people and are carried to another place.

6. By water
The fibrous husk traps air which enables it to float on water and be carried to distant shores.

Worksheet 7
1. Yes. Same number of seeds; same type of seed; same amount of time; all watered daily. (AMV)

2. They were investigating the effect of different temperatures on the process of germination.

3. All 10 seeds that were put in the classroom germinated by Day 3, whereas only 6 seeds germinated in the garden by Day 4 and none of the seeds in the refrigerator germinated.

4. It was too cold; seeds need warmth to germinate.

5. The temperature in the garden could be too warm so some seeds may dry up. (AMV)

Worksheet 8
1. This shows that seeds need water and warmth but not light to germinate.

2. They did not have any water.

3. They were not warm enough.

4. The seeds stay dormant during winter and only germinate when the weather gets warmer in the spring.