Year 3 Science: Seed Dispersal Quiz

Which of these best describes seed dispersal?

• the movement of seeds towards the parent plant

• the movement of seeds away from the parent plant

What kind of seeds are in the picture? Tick your answer.

• tree

• dandelion

• grass

How would this seed be dispersed? Tick your answer.

• by wind

• by animals

• by water

Select the four different ways seeds can be dispersed.

Groups:

(a) Wind

,

(b) water

,

(c) explosion

,

(d) Animals

• Seeds stick to or are eaten, which transports the seeds to a new location.

• seeds float to a new location.

• seeds are blown to a new location

• When fruits in plants ripen and burst, shooting out the seeds.

Seed dispersal is important for plants to ​ (a)   .

Seed dispersal allows new ​ (b)   to grow in areas where there may be lots of ​ (c)   .

This means that plants may grow ​ (d)   ,

• survive
• plants
• space
• Healthily

Tommy wanted to find out more about seed dispersal. He dropped a sycamore seed on two different days to see how far it landed from him. a) How is a sycamore seed dispersed?

b) On which day did the sycamore seed travel furthest when Tommy dropped it?

• Day 1

• Day 2

c) What could have made the seed travel further?

Answer explanation

There may have been a stronger wind.

d) Why is it important that seeds travel away from the parent plant?

The seeds in the picture have hooks on their coating.

Which method of seed dispersal would they use?

• Wind

• Explosion

• Water

• Animals