How Chromatography Works

  How Chromatography Works

1.  A breaker

2. Paper

3. Pencil

4. Color pencil

5. Tap

Step 1. Fill the beaker with water up to 25ml.

Step 2. Cut the paper by 2 by 6.

Step 3. Roll the paper around the pencil.

Step 4. Put the tap on the paper & pencil.

Step 5. Make a small circle with the colored pencil 1cm from the bottom of the paper.

Step 6. Put the paper in the water and make the pencil hang on the breaker.

How it works:Chromatography is a method of separating mixtures by using a moving solvent on filter paper. A drop of mixture solution is spotted near one end of the paper and then dried. ... The solvent flows along the paper through the spots and on, carrying the substances from the spot.

Day 17 Science

My balancing Robot

I learnt how to balance my robot on my finger and this picture shows me balancing my robot on my pencil.