What gives water the energy to evaporate?

• Plasma

• Heat

• molecules

• gas cooker

The temperature of a liquid changes from 10°C to -5°C. This will be...

• liquid

• solid

• gas

• plasma

Which material is the best conductor of electricity?

• rubber

• plastic

• wood

• copper

What pulls on your bones to make them move?

• muscles

• ligaments

• tendons

• spines

Which force makes a flat sheet of paper fall slower than a rock?

• Gravity

• air resistance

• upthrust

• weight

How does a thick stem help the prickly pear cactus?

• scare predators

• makes it grow faster

• helps it store water

Natasha wants to separate the salt from the water. What should she do?

• Sieve it

• Heat the solution

• filter it so it can separate

• handpicking

All of the following can become fossils EXCEPT

• a woman who lived 15,000 years ago found frozen in a glacier

• a penguin that lived 100,000 years ago found in a dry valley in Antarctica

• a wasp inside a 30 million-year-old block of amber

• a worm that lived 300,000 years ago.

Which of these is NOT an example of water changing from water vapour to liquid?

• whipped cream

• Fogging a Mirror

• Dew forms in the morning on leaves

• Perfume

Approximately how many times does the Moon orbit the Earth in a year?

• 27 times

• 13 times

• 265 times

• 365 times