Learning Library

# Melting Crayons

(211 ratings )

### Materials:

• Black crayons
• Yellow crayons
• Wax paper
• Timer
• Pencil
• Notebook
• Oven
• Oven mitt

### Procedure:

2. Lay a wax paper over the cookie sheet.
3. Dump your crayons on the cookie sheet. You should have at least three black crayons and three yellow crayons.
4. Separate the colors so that none of the black crayons are touching the yellow crayons.
5. When then oven is ready, place the cookie sheet on the centre rack.
7. While you wait, think about the question of this project: do you think the black or the yellow crayon will melt the fastest? Or, do you think both colors will start melting at the same time?
9. Keep checking the crayons to see which crayons are melting the fastest.
10. Record in your notebook the time at which each colour began to melt.
11. When every colour group has melted, have an adult help you use an oven mitt to remove the cookie sheet from the oven. (Don't be too quick to throw away the wax paper and crayon puddles! Once the crayon wax hardens, you can display it as nifty-looking evidence of your project.)
12. Review your notes. Did all the colors melt at the same time? Was your hypothesis correct?

### Results:

The black crayons should have melted much sooner than the yellow crayons.

### Why?

Colour makes a big difference. The Pigments,Which give each crayon its colour, don't react the same way to heat. Black crayons melted the faster because of it has dark pigments while yellow crayons melt slowly because of the light pigments.

Do you think you can only see these pigments at work with black and yellow crayons? Try this same experiment with the other colors in your crayon box! Can you predict the order that the colors of the rainbow -- red, orange, yellow, green, blue, indigo and violet -- will melt in?

Disclaimer and Safety Precautions

Education.com provides the Science Fair Project Ideas for informational purposes only. Education.com does not make any guarantee or representation regarding the Science Fair Project Ideas and is not responsible or liable for any loss or damage, directly or indirectly, caused by your use of such information. By accessing the Science Fair Project Ideas, you waive and renounce any claims against Education.com that arise thereof. In addition, your access to Education.com's website and Science Fair Project Ideas is covered by Education.com's Privacy Policy and site Terms of Use, which include limitations on Education.com's liability.

Warning is hereby given that not all Project Ideas are appropriate for all individuals or in all circumstances. Implementation of any Science Project Idea should be undertaken only in appropriate settings and with appropriate parental or other supervision. Reading and following the safety precautions of all materials used in a project is the sole responsibility of each individual. For further information, consult your state's handbook of Science Safety.

Create new collection

0

### New Collection>

0Items

What could we do to improve Education.com?