Cambridge Primary (1-6). Stage 3. Science. Workbook - Unit 1: Plants are living things

Look at these pictures. Draw each one in the correct group in the table.

| Alive | Not alive |
|---|---|
| | |

These are the seven rules to tell if something is a living thing: it moves; needs water and food; grows; makes waste; needs air; can sense the world around; can have young.

Look at the things in the table. Use the rules to decide if they are alive or not.

| Thing | Moves | Needs water and food | Grows | Makes waste | Needs air | Can sense | Has young | Alive |
|---|---|---|---|---|---|---|---|---|
| A goat | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
| A cat | | | | | | | | |
| The Moon | | | | | | | | |
| A tree | | | | | | | | |
| A dolphin | | | | | | | | |
| An ant | | | | | | | | |

Complete these sentences using your answers from the table. Pick one thing that is alive and one thing that is not alive. The table lists a goat, a cat, the Moon, a tree, a dolphin and an ant.

A I know ___ is alive because ___.

Complete these sentences using your answers from the table. Pick one thing that is alive and one thing that is not alive. The table lists a goat, a cat, the Moon, a tree, a dolphin and an ant.

B I know ___ is not alive because ___.

Look at the pictures below.

a Sort the things shown in the picture into the three groups.
b Draw each thing in the correct box.

| Living things | Things that were once alive | Things that have never been alive |
|---|---|---|
| | | |

Draw an object of your own in each box.

| Living things | Things that were once alive | Things that have never been alive |
|---|---|---|
| | | |

Colour this plant and label it.
Use these words.

roots · flower · leaf · stem

Every part of the plant is important.
Draw an arrow from the plant part to its important job.

| Plant part | Important job |
|---|---|
| roots | To make food for the plant. |
| flower | To hold the plant down and absorb water from the soil. |
| stem | To make seeds. |
| leaf | To hold the plant parts up and transport water. |

Sofia wonders what would happen if a plant did not have all these plant parts: roots, flower, stem, leaf.
Write in the bubbles what you think would happen to a plant without these plant parts.

- Without roots: ___
- Without a flower: ___
- Without a stem: ___
- Without a leaf/leaves: ___

Four similar plants are put in different places. Look at the picture and answer the questions. Use the letters A, B, C or D.

Plant ___ will grow well because it has most light.

Four similar plants are put in different places. Look at the picture and answer the questions. Use the letters A, B, C or D.

Plants ___, ___ and ___ will grow less well because they have less light.

Four similar plants are put in different places. Look at the picture and answer the questions. Use the letters A, B, C or D.

Plant ___ would grow better if it was moved to ___.

Two similar plants are growing. One is in the light, the other is in a dark box. The plants have water.
Draw what happens to the plants as they begin to grow.

| Plant with light | Plant with no light |
|---|---|
| Draw here. | Draw here. |

Look at the four seeds below and the places they will grow. They all get enough water, but will they grow well?
Look at the pictures and complete the sentences in the questions.

Plant ___ and ___ will not grow strongly because ___.

Look at the four seeds below and the places they will grow. They all get enough water, but will they grow well?
Look at the pictures and complete the sentences in the questions.

Plant ___ and ___ will grow well because ___.

Plants need light so that the leaves can make ___.

Plants need the right amount of water. They also need the right temperature. Look at these pictures. Is each plant growing well?
Read these sentences. Complete them by adding the right letter A, B or C.

Plant ___ cannot grow well because it is too cold.

Plants need the right amount of water. They also need the right temperature. Look at these pictures. Is each plant growing well?
Read these sentences. Complete them by adding the right letter A, B or C.

Plant ___ cannot grow well because it is too hot.

Plants need the right amount of water. They also need the right temperature. Look at these pictures. Is each plant growing well?
Read these sentences. Complete them by adding the right letter A, B or C.

Plant ___ can grow well because it has the right temperature.

Three seeds were grown in different places.
Complete these sentences. Use these letters and words.

A · C · water · good · stones · root · sandy · absorb

Plant B grew the best because the ___ soil held enough water for the plant to grow. The root could ___ enough water from the soil.