Which of the following is not part of blood?

Which part of the blood helps the body to fight infection?

What part of the blood helps it to clot if there is damage?

What can your pulse be used to measure?

When you are exercising, your heart rate and breathing rate increase because your body needs more ____________

The blood vessels that have the thickest walls are __________

What is the scientific word for when light changes direction?

How many colours are there in the visible spectrum (in white light)?

What is the reflected light in the sky called?

What is an animal that does not have a backbone called?

How could Precious separate chocolate drops from flour?

A new substance is formed when an irreversible (chemical) change has taken place. What might Rashid see when an irreversible change takes place.

The Moon is a luminous light source.

Which of the following is not a function of a skeleton?

What is the coloured part of the eye called?