for science teachers

1. Solid, liquid or gas?
Tick the correct box to show whether each material is
a solid, liquid or gas.
Material Solid Liquid Gas
Air
Toothpaste
Jam
Steam
Paper
Water
Salt
Coca-Cola
Milk

2. Solid, liquid & gas properties
 Underline the properties of solids.
 Circle the properties of liquids.
 Draw clouds round the properties of gases.
You will mark some phrases more than once.
flow easily do not flow easily
easy to compress difficult to compress (squash)
bad heat conductors often good heat conductors
high density low density
keep their shape take their container’s shape
diffuse (spread out) do not diffuse (spread out)

3. Circus of experiments

Experiment 1
Comparing the masses of different materials
 Measure the masses of the blocks.
 Record and explain your results.
Experiment 2
Putting a coloured crystal into warm water
 Use forceps to pick up a purple crystal.
 Drop it in the water.
 Record and explain your observations.
Experiment 3
Heating a metal bar
 Try to put the metal bar in the hole.
 Heat the metal bar and try to put it in the hole again.
 Record and explain your observations.
Experiment 4
Pressing the plungers on three syringes
 Try pressing the plungers on the syringes. How easy is it to
squash (compress) the materials?
 Record and explain your observations.
Experiment 5
Adding small weights to a thin wire
Put on eye protection.
 Add weights to the wire. What happens to its length?
 Record and explain your observations.
Experiment 6
Opening a perfume bottle
 Take the lid off the perfume.
 Record and explain your observations.

4. Explaining the evidence – 1
Experiment 1
Wood Glass Metal
Mass of
block (g)
The ___________ block is heaviest.
My explanation: ___________________________________
_______________________________________________
Experiment 2
When I put the purple crystal in water I saw ____________
_______________________________________________
My explanation: ___________________________________
_______________________________________________
Experiment 3
The metal bar did/did not go through the hole when it was
cold. It did/did not go through the hole when it was hot.
My explanation: ___________________________________
_______________________________________________

5. Explaining the evidence – 2
Experiment 4
Material How easy Explanation
was it to
squash?
Air
Water
Sand
Experiment 5
When I put weights on the wire, the wire got
_____________ and _____________.
My explanation: ___________________________________
_______________________________________________
Experiment 6
When I opened the perfume, I _______________________
_______________________________________________
My explanation: ___________________________________
_______________________________________________