Year 5 Science Reproduction in plants and animals: check-up and practice test questions

Method. Read the labels in the picture.

1. Read the labels. The female part is labelled carpel, and it holds the ovules.
   carpel
2. Name it. So the answer is carpel.
   carpel
3. Write the answer.
   carpel

Check. The ovules become seeds after fertilisation. ✓

Method. Read the labels in the picture.

1. Read the picture. The arrow shows pollen moving from one flower to another.
   arrow
2. Name it. The word is pollination.
   pollination
3. Write the answer.
   pollination

Check. Pollination comes before fertilisation. ✓

Method. Think about how runners work.

1. Think about the runner. A runner takes root and grows a new plant without seeds.
   without seeds
2. Decide. So the answer is no.
   no
3. Write the answer.
   no

Check. Runners are a way to reproduce without seeds. ✓

Method. Read section 3.2.

1. Read the definition. Seed dispersal is the spreading of seeds away from the parent plant.
   spreading
2. Name it. The word is dispersal.
   dispersal
3. Write the answer.
   dispersal

Check. Seeds can be dispersed by wind, water, animals or pods. ✓

Method. Read the dandelion row.

1. Read the row. The dandelion row says wind carries its fluffy seeds.
   wind
2. Name it. So the dandelion seed is spread by wind.
   wind
3. Write the answer.
   wind

Check. The fine hairs act like a parachute. ✓

Method. Read the animal table in section 3.3.

1. Read the table. The cat’s young develop inside the mother.
   inside the mother
2. Name the animal. So the animal is the cat.
   cat
3. Write the answer.
   cat

Check. Most mammals develop their young inside the mother. ✓

Method. Read the labels in the picture.

1. Read the labels. The egg and the sperm join to make one cell.
   one cell
2. Name it. The joined cell is a fertilised egg.
   fertilised egg
3. Write the answer.
   fertilised egg

Check. The fertilised egg develops into a young animal. ✓

Method. Add the counts, then divide by five.

1. Add the counts. The counts add to 490.
   490
2. Divide by five. Divide 490 by 5 to get 98.
   98
3. Write the answer.
   98

Check. Check: 98 times 5 is 490. ✓

Method. Think about what happens to the young and the seeds.

1. Think about the many. Not all seeds or young survive.
   not all survive
2. Write the reason. So making many gives a better chance that some will survive.
   better chance
3. Write the answer.
   Accept any sentence that says many seeds or young give a better chance that some will survive to reproduce.

Check. Survival of some keeps the living thing going. ✓

Method. Think about the steps.

1. Think about the pollen. Pollen must reach the stigma of a flower.
   reach the stigma
2. Write the reason. Fertilisation then makes the ovule grow into a seed.
   grow into a seed
3. Write the answer.
   Accept any sentence that says pollen must reach an ovule by pollination and fertilisation before the ovule can grow into a seed.

Check. Pollination is the first step in making a seed. ✓

Method. Read the definition in section 3.1.

1. Read the definition. Reproduction is the process by which living things make new living things of their own kind.
   their own kind
2. Name it. The word is reproduction.
   reproduction
3. Write the answer.
   reproduction

Check. Reproduction keeps a type of living thing going. ✓

Method. Think about the male part of the flower.

1. Think about the parts. The stamen makes pollen.
   makes pollen
2. Name it. The word is stamen.
   stamen
3. Write the answer.
   stamen

Check. The carpel is the female part. ✓

Method. Read the dispersal table.

1. Read the table. The burdock, or burr, has hooks that stick to the fur of animals.
   hooks
2. Name the plant. So the word is burdock.
   burdock
3. Write the answer.
   burdock

Check. The hooks stick to fur, so animals carry the seed away. ✓

Method. Read section 3.3.

1. Read the key idea. When a sperm joins with an egg, this is fertilisation.
   joins with an egg
2. Name it. The word is fertilisation.
   fertilisation
3. Write the answer.
   fertilisation

Check. Fertilisation starts the development of a young animal. ✓

Method. Find the third row of the table.

1. Find the row. Head 3 is the third row, with a count of 88.
   head 3
2. Read the count. So head 3 had 88 seeds.
   88
3. Write the answer.
   88

Check. The mean of all five heads is 98. ✓

Method. Add the counts, then divide by five.

1. Add the counts. The counts add to 490.
   94 + 102 + 88 + 110 + 96 = 490
2. Divide by five. Divide 490 by 5 to get 98.
   490 divided by 5 is 98
3. Write the answer.
   98

Check. Check: 98 times 5 is 490. ✓

Method. Think about where the new plant grows from.

1. Think about the runner. The new plant grows from part of the parent plant.
   part of the parent
2. Give the reason. So it has the same features as the parent.
   same features
3. Write the answer.
   yes. Accept any reason that says the new plant grows from part of the parent, so it has the same features.

Check. Reproduction without seeds makes a copy. ✓

Method. Compare the two.

1. Think about the plant. A flowering plant makes seeds after pollination and fertilisation.
   seeds
2. Think about the frog. A frog’s eggs are fertilised outside the female, in water, as spawn.
   in water
3. Write the answer.
   Accept any one difference, such as: a flowering plant makes seeds after pollination, but a frog’s eggs are fertilised in water as spawn.

Check. Both reproduce, but in different ways. ✓

Method. Think about what happens to the young.

1. Think about the many. Not all of the seeds or young will survive.
   not all survive
2. Write the reason. So making many gives a better chance that some will survive.
   better chance
3. Write the answer.
   Accept any sentence that says many seeds or young give a better chance that some will survive to reproduce.

Check. Survival of some young keeps the living thing going. ✓

Method. Compare where the young start.

1. Think about the frog. The frog lays its eggs in water, outside its body.
   outside its body
2. Think about the cat. The cat’s young develop inside the mother.
   inside the mother
3. Write the answer.
   Accept any sentence that says the frog lays eggs outside its body in water, while the cat’s young develop inside the mother.

Check. Where the young start is one main difference. ✓