Experiments

Today on the agenda we had experiments. This was something we were all looking forward to. We usually stick to two old favourites - Elephants Toothpaste and the volcano. However I thought that I would try out some others this afternoon as well!

Tea bag rocket

I tried this out before doing it with the boys to make sure it worked, and it was quite good.  You basically empty a tea bag and light it - it floats up into the sky. I got this from Kids Activities Blog.

We tried this about 7 times and of course it did not work any of the times - I have no idea why! 

We set it up

and lit it then...

nothing! So onto the next...

Exploding rocket

The boys saw this on television so were desperate to give it a go. You fill a small container with water and drop in an alka-seltzer tablet then put the lid back on. 

Supposedly the lid pops off - we waited....

and waited....

 
Nothing happened more than a slow slide upwards - nothing dramatic and the boys were very disappointed!

So onto the next...

Lava Lamp

We were all getting frustrated by this point so I was really hoping this would work! You fill a jar 1/3 full of water with some food colouring then fill it up with oil. 

You then drop an alka-seltzer in and its brilliant you get bubbles of coloured water in the oil.

This was quite fun and the boys did enjoy it - I have kept the jar and every now and then we pop an alka-seltzer in to watch it again!

Onto the next..

Volcano

Then we moved onto the volcano - the boys won't let me do experiments without this one - They love it! you put vinegar in a container and then add baking soda - it explodes! We do have a plastic volcano from a past kit with a tiny hole in the top so it squirts out...

And finally...

Elephant's Toothpaste

This is my favourite! You put 1 cup of hydrogen peroxide (at least 9%) into a small necked bottle with some food colouring (we used green) a dash of washing up liquid and we used peppermint flavour for authenticity! Then you mix a spoon of dry yeast with warm water and pour the mix into the bottle. 

The foam then oozes out and becomes really warm - great fun!

Nothing like a bit of science!

Thanks for reading....