2018 ICAS Science Paper B

All insects have six legs and one pair of antennae on their heads. Which of these is NOT an insect?

• [Image of a praying mantis]

• [Image of an ant]

• [Image of a tick]

• [Image of a stick insect]

Solar panels convert energy from sunlight into electricity. Which of the following would affect the amount of energy captured by the solar panels?

• how hot the day is

• how strong the roof is

• how much energy is needed

• how sunny it is during the day

The diagram shows four containers, each holding some water. Which container has the greatest amount of water?

• W

• X

• Y

• Z

The pupil is the opening in the centre of the eye. In bright light, the pupil becomes smaller so less light enters the eye. In the dark, the pupil becomes larger to let more light into the eye. On a sunny afternoon, Simon walked into a dark cinema. Soon after, the movie started with a bright screen. Which of these shows the changes in Simon’s pupils?

• [eye with medium pupil] → [eye with large pupil] → [eye with small pupil]

• [eye with medium pupil] → [eye with small pupil] → [eye with medium pupil]

• [eye with medium pupil] → [eye with small pupil] → [eye with large pupil]

• [eye with medium pupil] → [eye with large pupil] → [eye with large pupil]

In the first photograph the arrow shows the length of a cicada’s body. In the second photograph the arrow shows the width of a cicada’s thorax. Which option has both the correct body length and correct thorax width?

• Body length: 4 1/2 cm, Thorax width: 2 1/2 cm

• Body length: 4 1/2 cm, Thorax width: 2 cm

• Body length: 6 1/2 cm, Thorax width: 2 1/2 cm

• Body length: 6 1/2 cm, Thorax width: 2 cm

Lisa placed an empty plastic cup in a container of water. The diagram shows the plastic cup floating in the water. What will happen if Lisa places a marble into the plastic cup?

• The water level will move downwards.

• The water level will move upwards.

• The water level will not change.

• The amount of water in the container will increase.

The graph shows the results of a student allergy survey in one class. Refer to the 'Student Allergy Survey' graph. Which of the following groups has the greatest number of students in it?

• students with an allergy

• girls with an allergy

• boys without an allergy

• girls without an allergy

The graph shows the results of a student allergy survey in one class. How many students are there in this class?

• 24

• 22

• 19

• 10

Who are two of Fred’s grandparents?

• Lee and Nilesh

• Nelly and Joe

• Ahong and Nelly

• Liz and Chris

The diagram shows some features of three animals (dolphins, turtles, and cats). Which feature is common to dolphins and cats but not to turtles?

• They lay eggs.

• They have a backbone.

• They give birth to live young.

• They mostly live under water.