You will need: Bicarbonate of soda, Vinegar, a spade.
Handy but not necessary; a pipette, 2 different colours of paint

Use your spade to make a little mud volcano shape in the garden. Make a little well in the top of the volcano and pour a little bicarb into the well.

If you have a pipette you might want to squirt some vinegar into a cup, so your child can use the pipette to suck up vinegar and squeeze it onto the bicarb. If you don't, your child will pour it straight onto the bicarb. Watch for the eruption.

Your child might want to repeat this a few times. If you mix the vinegar with paint first, you get a coloured volcano. You can use one colour and repeat again with a different colour to get stripes volcanos. This is also a good way to learn about colour mixing.

Note: If you do not have a garden you can do this experiment with a beaker, but you might want a tray underneath, as it can get a little messy!

You will need: paper or a square of pale coloured fabric, 1 piece of kitchen towel, a hammer and sellotape. This will need to be done on a flat, hard surface.

Go and collect some brightly coloured flowers (pansies, marigolds, grape hyacinths work well) and a couple of interesting shaped leaves.

Place them carefully on your fabric/paper. Make sure they are where you want them. Place the kitchen towel over the top. Tape them down so they don't move about. Now for the fun part, bash! Take the hammer and bash over and over again. You should start to see the pattern of the flower showing through the kitchen towel. Keep bashing!

Slowly unpeel the kitchen towel and look at the print you have made.

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