07/04/2017
The astronauts have been doing all kinds of experiments. Here's an example of one they have done. (With answers by the astronauts)
Colourful m&m’s
Description:
You have m&m’s in a lot of colours: red, yellow, green, orange, blue or brown, but is it that easy? What colour does a brown m&m have?
Requirements:
• 10 brown m&m’s
• 10 blue m&m’s
• Glass
• Water
• Plastic spoon
• Coffee filter
• Stopwatch
• Scissor
• Toilet paper
Steps:
1. Put the brown m&m’s in the glass
2. Put 2 spoons of water in the glass
3.Occasionally turn the m&m’s with the spoon
4. Wait until the brown m&m’s turn light brown
5. Take the m&m’s out of the glass using the spoon.
What do you think that will happen when you put in the coffee filter?
We think that the m&ms will stay the same colour as they are now (after we put them into the water), so white.
6. Put two sheets of toilet paper on top of each other
7. Get the stopwatch ready
8. Put the filter in the water in the glass
9. Wait ten minutes
10. Take the coffee filter out of the glass
11. Fold the coffee filter open and put in on the sheets of toilet paper
What has happened?
The water which is in the coffee filter has the colours of a rainbow.
How did you think this happened?
In the brown colour of the m&m the other colours were probably hidden. It is the same concept as white light, which also has all the other colours hidden inside.
What would happen if you’d use blue m&m’s
We think that the same thing will happen.
12. Do the same with the blue m&m’s
Is this a permanent change or was it temporary?
It is a permanent change, but the water didn’t have the colours of a rainbow. The water was just blue.
13. Taste a used and an unused m&m
Do they taste the same?
Yes, the taste stayed the same.