Science practical: a lit splint or match placed in the gas:

Science practical: A glowing splint placed in the gas:

Science practical: the gas is bubbled through limewater

Science practical: Hydrogen result

Science practical: Carbon dioxide result

Science practical: Oxygen test result

States of matter: particles are packed closely together in a lattice:

States of matter: The particles are far apart and move very quickly

States of matter: Can be compressed

States of matter: Can take the shape of its container

States of matter: The particles are free to move but are very close together:

States of matter: The particles vibrate in a fixed position:

Solid to liquid

Liquid to gas

Solid to gas

Gas to liquid

Liquid to solid

Light bounces off an object

Light passes through an object

Light energy is transformed

Light changes speed and/or direction in a different substance

When light is spread out into its different colours (spectrum)

Four rules that must be followed when drawing ray diagrams

Name 2 common uses of concave mirrors

Name 2 common uses for convex mirrors

The clear front part of the eye that refracts light slightly towards the pupil

The hole that allows light to enter the eyeball

The coloured part of the eye that controls the size of the pupil

The convex shaped object that focuses light onto the retina

The layer of cells that collect light and produce electrical signals

The nerve that sends signals to the brain from the eye.

The time taken for a planet to rotate once on its axis?

T

The change in average temperature and weather due to the tilt of a planet's axis

The apparent change of the moon over a month

The rise and fall of the sea due to the gravitational pull of the moon

The moon passing through the shadow of the earth

T

What is the name of the moon phase when there is a solar eclipse?

What is the name of the moon phase when there is a lunar eclipse?

Where do all stars form?

W

What process produces light and heat in a star?

What name is given to a very large star?

What is an exploding star called?

What name is given to a very small star?

Describe what happens to a medium-sized star later in its life

D

A spherical (or near-spherical) object that orbits around the sun

Provides a gravitational pull on the planets to keep them in orbit

A natural or man-made object that orbits a planet

The natural satellite of the earth

Chemical or physical change: the change can be easily reversed

Chemical or physical change: Heat energy is absorbed or released

T