Year 9 post A1

Last updated about 5 years ago
10 questions
1

What is the centre of an atom called?

1

What is in the centre of an atom?

1

How many chromosomes are there in a 'normal' body cell?

1

How many chromosomes are there in sperm and egg cells

1

Name the part of the microscope you put your eye against

1

Name the part of the microscope near the object/sample.

1

What process does water use to move into a plant cell?

1

If a device has 90J of energy going into it and 30J of wasted energy, how much useful energy does it have?

1

Conservation of energy means that the energy at the end of a transfer is....... as at the beginning

1

An isotope has a different number of ....