Describing Relationship

Mary carried out an experiment to find out if the number of batteries affects the number of paper clips attracted. What is the effect of the number of batteries on the number of paper clips attracted?

• As the number of paper clips attracted increases, the number of batteries increases.

• As the number of batteries increases, the number of paper clips increases.

• As the number of batteries increases, the number of paper clips attracted increases.

• As the number of batteries increases, the magnetic strength of the iron nail increases. .

Mary carried out an experiment to find out if the number of batteries affects the number of paper clips attracted. What is the effect of the number of batteries on the magnetic strength of the nail?

• As the magnetic strength of the nail increases, the number of batteries increases.

• As the number of batteries increases, the strength of the iron nail increases.

• As the number of batteries increases, the number of paper clips attracted increases.

• As the number of batteries increases, the magnetic strength of the iron nail increases. .

Jack put the same plant with different number of leaves in beakers of the water. All the beakers contain 200 mℓ of water at first. What conclusion can you made about the amount of water left in the beaker and the number of leaves?

• As the number of leaves increases, the amount of water left in the beaker decreases.

• As the number of leaves increases, the amount of water in the beaker decreases.

• As the number of leaves increases, the amount of water absorbed by the plant decreases.

• As the amount of water in the beaker decreases, the number of leaves increases.

Jack put the same plant with different number of leaves in beakers of the water. All the beakers contain 200 mℓ of water at first. What conclusion can you made about the amount of water absorbed by the plant and the number of leaves?

• As the number of leaves increases, the amount of water left in the beaker decreases.

• As the number of leaves increases, he amount of water absorbed by the plant decreases,

• As the number of leaves increases, the amount of water absorbed by the plant increases.

• As the amount of water in the beaker decreases, the amount of water absorbed by the plant increases.

The farmer sprayed different amount of pesticide on 4 identical apple trees with the same number of pests at first. He recorded the number of pests left in the tree after 7 days. How does the amount pesticide affect the number of pests left?

• As the amount of pesticide increases, the number of pests left increases.

• As the amount of pesticide increases, the number of pests left decreases.

• As the amount of pesticide increases, the number of pests decreases.

• As the amount of pesticide increases, the number of pests killed increases.

The farmer sprayed different amount of pesticide on 4 identical apple trees with the same number of pests at first. He recorded the number of pests left in the tree after 7 days. What is the relationship between the number of pest killed and the the amount of pesticide ?

• As the the number of pests killed increases, the amount of pesticide increases.

• As the amount of pesticide increases, the number of pests left decreases.

• As the amount of pesticide increases, the number of pests killed decreases.

• As the amount of pesticide increases, the number of pests killed increases.

The plant becomes taller after a few weeks. This shows that living things __________________

• respond to changes.

• need air, food and water.

• can reproduce

• can grow

All plants will have ___________ (You can choose more than one answer)

• fruits

• stem

• leaves

• flowers

• roots

Non-flowering plants do not have ___________

• roots

• stem

• leaves

• fruits

Ferns reproduce from seeds

• true

• false