Easy Elementary Science Projects - The Working Of Filters

Easy Elementary Science Projects - The Working Of Filters

  

This science project is one of three Easy Elementary Science Projects that we

will do on filtering water and other liquids. You will see that a filter removes more suspended solids than a strainer, that a filter does not remove solids dissolved in the liquid and that you can use a wick to filter suspended matter from water.

What you will need for this Easy Elementary Science Project:

• Water
• A measuring cup
• 6 Glasses
• Sand
• A measuring spoon
• Sugar
• Milk
• Cocoa
• Spoon
• 3 Coffee filters
• A notepad
• A pen
• A camera
• 3 teaspoons

How to do this experiment:

1. To formulate your hypothesis write down which of the sand, sugar and cocoa you think the coffee filters will remove from the liquids.
2. Now you proceed to test this hypothesis (it does not matter if you prove yourself wrong, the important thing is that you do your experiment accurately and record what you find accurately. You will not be penalized for a wrong hypothesis, so do not change your hypothesis afterwards that is against good scientific method.)
3. Note all the glasses must be completely clean
4. In two of the glasses pour 1 cup of water
5. In a third glass pour ¼ cup of milk
6. To one glass of water add a tablespoon of salt
7. To the other glass of water add 1 tablespoon of sugar
8. To the milk add 1 teaspoon of cocoa
9. Using a clean teaspoon each time, thoroughly stir all three
10. In your note book make a note of the appearance of the liquid in each glass
11. Take a photo for your display
12. Now you have to proceed with some help. Place a coffee filter into the top of one of the clean glasses; get someone to help you hold it so it does not drop into the glass
13. Slowly pour the water and sand mixture into the filter
14. Observe what happens and write it in your note book
15. Take a photo of the filtered water as well as the filter, you can let the filter dry carefully and keep that for your display as well
16. Now you do the same with the other mixtures as well, when you come to the sugar and water mixture you can also taste the filtered water and make a note of the taste.
17. What happened? Did the coffee filter, filter out the sugar? Did it filter out the sand? What happened with the cocoa?
18. Now you can formulate your results
19. Remember the photos for your display, because as with all projects, the displays of Easy Elementary Science Projects are important.

Science Fair Projects are fun. This is just one to show you, get a good book, such as 365 Simple Science Experiments with Everyday Materials for even more ideas.