7 Easy School Science Projects
Floating eggs
We all know that a fresh egg sinks in fresh water. Find out how much salt you need to add to the water to make the egg float instead.
Volcanoes
This is messier! OK, you can make a simple volcano using vinegar and baking powder and you’ve probably got the ingredients already. For a more realistic volcano, complete with gray ash, get hold of some ammonium dichromate, which burns fiercely and gives out sparks as well.
Make Slime
Take 7 tablespoons of milk and 1 tablespoon of vinegar. Let solids form and then filter them using kitchen towel or a coffee filter. Squeeze out the last of the liquid then use about 1/4 teaspoon of baking soda to bind the solids together. Enjoy your slime!
Levitation
At its simplest, just use two magnets. Use them to push each other apart. If you’ve got access to round magnets that look a bit like hoopla hoops, place them on a round pole and see how well they repel each other.
Rockets
You’ll need a 2 liter soft drink bottle and a pump (a foot pump is easiest but a bicycle pump will work as well). Almost fill the bottle with water. Pump in air until you get a launch. See how high or far you can send your rocket.
Growing Crystals
Boil 2 liters of water. Pour it into a jug, keep stirring and keep adding either salt or sugar until the water won’t hold any more (you’ll see some salt or sugar at the bottom of the jug that just refuses to dissolve). Decant this solution into a new jug. Pierce a hole in a sheet of card. Dangle a paperclip on a piece of string tied through the hole – the paper clip should be about 5cm from the bottom of the jar. See what crystals form on your string.
Make Lightning
This needs to be done in a dark room. Inflate some balloons. Rub them rapidly against a woolen sweater (do this at least 10 times). Hold the balloon near a metal object like a door handle and watch the sparks fly.
By: Carl Walker
Tags: Ammonium Dichromate, Baking Powder, Baking Soda, Bicycle Pump, Carl Walker, Coffee Filter, Easy School Science Projects, Foot Pump, Growing Crystals, Hoopla, Jug, Kitchen Towel, Levitation, Liters Of Water, Paperclip, School Science Projects, Slime, Soft Drink Bottle, Water Pump, Woolen Sweater