Density tower experiment

Today we work with different liquids:

Dish soap, water, condensed milk, sunflower oil,  body oil and a grape.

We talk about what is going to happen when we pour them in a glass...

Some pupils say they will mix. Some pupils say they will stay separate.

Then they predict which one will stay at the bottom and which one on top.

This is what happened...

After that we watch a video to see what happens with other liquids.

After the experiment we see that

MORE DENSE LIQUIDS STAY AT THE BOTTOM, 

LESS DENSE LIQUIDS FLOAT.

Each layer is less dense than the one below it.

We plant garlic and onions

This week our 4th graders plant garlic and onion.
We separate each other only 10cm, so we plant a lot of them!

We also look how beans are growing.

Flower colouring experiment. Part II

My flower turned blue.
Mine turned green.
And mine turned yellow.
And mine is half yellow half blue! !!

Flower colouring experiment

We need some white carnations for the experiment.
We cut the stem.
We add some food colouring drops in the water.
We mix some colours:
Blue + yellow = green
Blue + red = purple
Yellow + red = orange
Then we put the flowers in the bottle and wait for a couple of days...
See what happens...