Year 3 Science Parts of a flowering plant: check-up and practice test questions

Method. Think about the part that holds the leaves and flower up.

1. Think about the job. The stem holds the rest of the plant up.
   holds up
2. Name the part. So the stem is the part that holds the plant up.
   stem
3. Write the answer.
   stem

Check. The stem holds the plant up. ✓

Method. Think about which part uses light.

1. Think about the light. Light is used to make food.
   light
2. Name the part. The leaves use light to make food.
   leaves
3. Write the answer.
   leaves

Check. Leaves use light to make food. ✓

Method. Find the part under the soil.

1. Find the roots. The roots are under the soil line.
   under the soil
2. Read the letter. The letter D points to the roots.
   D
3. Write the answer.
   D

Check. The letter D is under the soil. ✓

Method. Think about the part in the soil.

1. Think about the soil. The water is in the soil.
   water in the soil
2. Name the part. The roots take in water from the soil.
   roots
3. Write the answer.
   roots

Check. The roots take in water. ✓

Method. Think about what the plant makes to grow new plants.

1. Think about seeds. Seeds are made by the flower.
   flower
2. Name the part. The flower makes seeds.
   flower
3. Write the answer.
   flower

Check. The flower makes seeds. ✓

Method. Add the leaves on each side.

1. Read the numbers. There are 6 leaves on one side and 7 on the other.
   6 and 7
2. Add them together. The total is the number of leaves on both sides.
   6 + 7 = 13
3. Write the answer.
   13 leaves

Check. 7 + 6 = 13, so the answer is right. ✓

Method. Take the Monday height away from the Friday height.

1. Read the two heights. The stem was 18 cm on Monday and 27 cm on Friday.
   18 and 27
2. Take the smaller away from the bigger. The growth is the change in height.
   27 − 18 = 9
3. Write the answer.
   9 cm

Check. 18 + 9 = 27, so the answer is right. ✓

Method. Think about where light is used to make food.

1. Think about the leaves. Leaves are the parts that use light to make food.
   leaves use light
2. Decide. Without leaves, the plant cannot make food from light, so Tom is not right.
   no
3. Write the answer.
   no

Check. No leaves means no place to make food from light. ✓

Method. Think about what the roots do.

1. Think about the first job. The roots hold the plant in the soil.
   hold in soil
2. Think about the second job. The roots take in water and minerals from the soil.
   water and minerals
3. Write the answer.
   Accept any sentence that says the roots hold the plant in the soil, or take in water and minerals.

Check. Either job is correct. ✓

Method. Check each choice against the four main parts.

1. Read A. The stem is a main part of a flowering plant.
   A: stem
2. Read B. A stone is not a part of a plant.
   B: stone
3. Read C. Leaves are a main part of a flowering plant.
   C: leaves
4. Write the answer.
   B

Check. A stone is not part of any plant. ✓

Method. Think about where the roots grow.

1. Think about the soil. The roots grow down into the soil.
   down into the soil
2. Name the part. The part under the soil is the roots.
   roots
3. Write the answer.
   roots

Check. Roots hold the plant in the soil. ✓

Method. Find the flower at the top of the plant.

1. Find the flower. The flower is at the top of the plant.
   top
2. Read the letter. The letter A points to the flower.
   A
3. Write the answer.
   A

Check. The letter A is on the flower. ✓

Method. Think about where the water comes from and where it goes.

1. Think about the start. Water is taken in by the roots, from the soil.
   from the roots
2. Think about the end. The water goes to the leaves, which are above the roots.
   to the leaves
3. Write the answer.
   up

Check. Water moves up from the roots to the leaves. ✓

Method. Think about what the roots do for the plant.

1. Think about holding. The roots hold the plant in the soil.
   holding in soil
2. Think about taking in. The roots take in water and minerals from the soil.
   water and minerals
3. Write the answer.
   Accept any two of: holding the plant in the soil; taking in water; taking in minerals.

Check. Any two of these three jobs are correct. ✓

Method. Think about where the stem puts the leaves.

1. Think about the stem. The stem holds the leaves up above the soil.
   holds up
2. Think about the light. Raised leaves can reach the light, which they need to make food.
   reach the light
3. Write the answer.
   Accept any answer that says the stem holds the leaves up, so that they can reach the light.

Check. Holding the leaves up lets them reach the light. ✓

Method. Think about the part that catches light.

1. Name the part. The leaves catch light.
   leaves catch light
2. Name what they make. The leaves use light to make food for the plant.
   food
3. Write the answer.
   Leaves make food; they use light to make it.

Check. Leaves are the food-makers of the plant. ✓

Method. Think about what the petals do.

1. Think about the petals. Bright petals attract insects.
   attract insects
2. Think about the seeds. An insect that visits the flower can help it make seeds.
   help make seeds
3. Write the answer.
   Accept any answer that says bright petals attract insects, such as bees, which can help the flower to make seeds.

Check. Insects visiting flowers help the flower to make seeds. ✓

Method. List the four main parts, then choose one and give its job.

1. List the parts. The four main parts are roots, stem, leaves and flower.
   roots, stem, leaves, flower
2. Choose one part. Choose one part, such as the roots.
   roots
3. Give its job. The roots hold the plant in the soil and take in water and minerals.
   hold and take in
4. Write the answer.
   Accept any answer that names roots, stem, leaves and flower, and gives one correct job, such as roots take in water.

Check. Four parts are named and one job is given. ✓

Method. Think about what leaves need to make food.

1. Think about the light. Leaves need light to make food.
   light needed
2. Think about the dark. A dark cupboard has no light, so the leaves cannot make food.
   no food in dark
3. Predict. Without food the plant may grow weakly.
   may grow weakly
4. Write the answer.
   Accept any answer that says the leaves need light to make food, so they cannot make it in the dark, and the plant may grow weakly.

Check. Light is needed for the leaves to make food. ✓

Method. Think about the job of each part.

1. Read the claim. Mo says all parts do the same job.
   same job
2. Find two different jobs. Roots hold the plant in the soil. Leaves make food using light.
   roots and leaves differ
3. Decide. The parts have different jobs, so Mo is not right.
   not right
4. Write the answer.
   No. Accept any answer that names two parts with different jobs, such as roots holding the plant and leaves making food.

Check. Each part has its own job. ✓