What type of animal produces chicks?

Where do amphibians live?

What does the word incubate mean?

Where does fertilisation of a bird egg take place?

What develops to allow a tadpole to leave the water?

How many days does it take the Moon to orbit the Earth?

How many days does it take the Earth to orbit the Sun?

How many days are there in one Earth year?

A material that dissolves in a liquid is called a ____________.

When sugar dissolves in water, what is the solvent?