Hurumanu - Rainbow Paper
Aim: To separate colours by using the process of chromatography.
Definition: Chromatography is a method of separating out materials from a mixture.
Eg. blood, ink, drugs,
Scenario
A crime has been committed. The police have a signed cheque and a letter from the same crime scene but it seems like the handwriting is different. They have 3 suspects but not enough evidence. They need to know if the letter and the cheque were written by the same person.
How do they tell if the pens used for both of these pieces of evidence are the same?
Rainbow paper
Materials;
1. paper
2. cup
3. coloured pens
4. water
5.
Process:
Step 1:Get a cup
Step 2:draw 2 dots 1 cm below the top
Step 3:Make it hang in the cup but let it touch the ground
Step 4: Put some water in the cup
Step 5:watch the colour drain
Conclusion: What have I learnt from this experiment?
if you put paper with two coloured dots on paper then dip it in warm water it changes the waters colour
Aim: To separate colours by using the process of chromatography.
Definition: Chromatography is a method of separating out materials from a mixture.
Eg. blood, ink, drugs,
Scenario
Scenario
A crime has been committed. The police have a signed cheque and a letter from the same crime scene but it seems like the handwriting is different. They have 3 suspects but not enough evidence. They need to know if the letter and the cheque were written by the same person.
How do they tell if the pens used for both of these pieces of evidence are the same?
How do they tell if the pens used for both of these pieces of evidence are the same?
Rainbow paper
Materials;
1. paper
2. cup
3. coloured pens
4. water
5.
Process:
Step 1:Get a cup
Step 2:draw 2 dots 1 cm below the top
Step 3:Make it hang in the cup but let it touch the ground
Step 4: Put some water in the cup
Step 5:watch the colour drain
Conclusion: What have I learnt from this experiment?
No comments:
Post a Comment
Please structure your comments as follows:
Positive - Something done well.
Thoughtful - A sentence to let us know you actually read/watched or listened to what they had to say.
Helpful - Give some ideas for next time or Ask a question you want to know more about.