Source:
The Need Project
Topics Middle School,
Ecology
Grade Levels: 4-6
Questions: Can you distill clean water from muddy water? Can you distill clean water from salty water?
Possible Hypotheses: You can/cannot make clean water from muddy water. You can/cannot make clean water from salty water.
Materials: Two large plastic containers Clear plastic wrap Masking tape Two small rocks Two small glasses Two tablespoons of dirt Two tablespoons of salt Water
Procedure:
- Fill both plastic containers with one inch of water. Mix the dirt into the water in one and the salt into the other.
- Place one empty glass upright into the middle of each plastic container. Make sure it remains empty.
- Cover both plastic containers tightly with plastic wrap and seal them with tape. Place a small rock in the middle of the plastic wrap directly over the glass but not touching it.
- Place the stills in a sunny place for two hours. Examine any water that forms in the glass. Record your observations.
Analysis and Conclusion: Did the stills make clean water? Can you explain how they worked? Can you imagine a situation in which knowledge could save your life?
This article is brought to you by:
Reprinted with the permission of the NEED Project. © 2008 National Energy Education Development Project - All Rights Reserved.
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.
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.
Add your own comment