P6 Science Revision 9 (Life Science)

The diagram shows a leaf cell with parts labelled 1 to 4. Which part uses sunlight to make food?

• 1

• 2

• 3

• 4

Study the classification chart and the three animals, P, Q and R.

Which of the following shows the correct classification of animals in boxes X and Y?

• 1

• 2

• 3

• 4

The diagram shows how water and substance P flow through different parts, A, B, C and M, of a plant.

What do A, B and C represent?

• 1

• 2

• 3

• 4

Plant B grows well in areas with clean air. The diagram shows plant B growing near a factory which gives out polluted gases.

Based on the diagram, in which direction was the wind blowing?

• $\longleftarrow$

• $\longrightarrow$

• $\uparrow$

• $\downarrow$

A tree supports only the organisms shown.

Which of the following is correct?

• The birds form one community.

• The grasshoppers form three populations.

• The tree forms a habitat for the organisms.

• The squirrels and the tree form one community.

Which of the following is not correct?

• Arrows in a food chain show the flow of energy.

• Decomposers return nutrients to the environment.

• Energy increases as it passes through a food chain.

• Plants convert light energy from the Sun to potential energy.

When fuels are burnt for energy, pollutants such as greenhouse gases may be produced. The table shows some information about three types of fuels, Q and R.

Which of the following cannot be concluded based on the information in the table?

• Acid rain forms only from the burning of Q and R.

• P, Q and R are non-renewable sources of energy.

• Burning of P, Q and R contributes to global warming.

• P is the best fuel to use to save the environment while it lasts.

The graph shows the changes in the mass of a young plant and its seed leaves during germination.

Which of the following best explains the changes shown in the graph?

• The leaves first appear around day X.

• The roots grow out first followed by the shoot.

• The young plant only starts to grow after day X.

• The seed leaves provide food for the young plant until day X.

Laura cut the lower stem of a white flower into two equal parts. She placed them into containers with different coloured water as shown.

After a short time, she observed that some parts of the flower turned red, some turned yellow, while the rest remained white.

Laura made four statements:

A - The food made by the plant was red and yellow in colour.

B - The stem transported the different coloured water to the flower.

C - No coloured water was transported to the flower parts that remained white.

D - There were no water tubes in the flower parts that remained white.

Which statements can be concluded from her observations?

• A and D only

• B and C only

• B and D only

• B, C and D only

Which statement is correct about the mushroom and the fern?

• Both grow only on trees.

• Both reproduce from spores.

• Both are non-flowering plants.

• Both cannot make their own food.