Which gas is 21% of air?

• Nitrogen

• Oxygen

• Helium

If the man in the photo is 2 metres tall, what is true about the crystal behind his head

• It is less than 2 m long

• It is 2 m long

• It is more than 2 m long

What should always be used when doing a diagram in Science?

• Pen

• Pencil

• Eraser

• Ruler

• Labels

How long is this shell from tip to tip in centimetres? (nearest to)

• 12 cm

• 13 cm

• 17 cm

• 20 cm

The factor changed by the experimenter is called the:

This graph shows that, taller people usually have, arms which are

What volume of water was in the measuring cylinder before the rock was added?

• 13 mL

• 15 mL

• 17 mL

• 19 mL

Data from an experiment should always be presented in a?