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Outside the window, you can't walk properly, and you need to entertain the kids. Can we do a couple of scientific experiments? But explain to the child that all substances in the world have different density: for example, oil density is lower than water density. What does that mean? They never mix, and you can use it.

Fireworks in the bank.

All you need for this experiment is in your kitchen: banks, water, vegetable oil and food paint. And it looks like a lot of time and effort.

1. Fill the can with warm water for about two thirds.
2. In a small mice, put three to four spoons of vegetable oil and drip in it different colors (if you have a painter in the powder, make a water solution).

3. Cross the butter and the painter with a fork to get smaller, colorful drops, butter water doesn't mix, so there's nothing to be afraid of.

4. Carefully put oil with paint in the water and keep an eye on what's going on.

The food painter will be slowly dissolved in the water, forming the flower streams and then mixing, creating new colors.

The point is, the oil will always swim on the surface, and the paint will sink, it's heavy oil. It looks like little color explosions-- from here and the name: fireworks in the bank.

Lava-lampa

This experiment uses high bottles, e.g. from underwater, or flavour capacity, vegetable oil, water, food painter and sipping pills: alcaselzer, soluble aspirin, in general, those that release carbon dioxide when contacting water. As a result, there will be some kind of paraffin lamp that was popular 20 years ago, only without paraffin and heat, but with the same media effect.

1. The oil needs a lot, fill them a bottle a little more than half.
2. The rest of you will share the water and wait for the code to be down. Now add ten drops of food color.

3. Smash a four-piece stack and roll one piece at a time in a bottle of oil and painted water. Don't overburden, if there's too much carbon dioxide out there, the bubbles will be smaller and the effect is less interesting.