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Wintry Science
Tweet Wintry Science Here’s a seasonally related temperature experiment exploring what happens when we freeze oil & water You will need: a clear plastic container, water, cooking oil food colouring (optional), use of a freezer. Instructions 1. Pour some water into the clear plastic container. You can add some blue or green food colouring [...]
Ketchup Volcano!
Tweet Ketchup Volcano! ( A longer-lasting volcano with ‘Natural Orange-Red Nontoxic Lava’ !) The acetic acid in ketchup reacts with baking soda to produce an extra-special type of lava for a chemical volcano. This non-toxic volcano recipe is sure to please! You will need: Small container (we used an empty travel-size bottle.) Volcano (You can [...]
Blue Sky – Red Sunset
Tweet Whenever it’s not completely filled with clouds, we can see that the sky is blue. As our world turns the sun rises and sets, and as it sets it looks red. These two observations are related. You will need: A torch a transparent container with flat parallel sides (a 10-litre [2½- gallon] aquarium is [...]
Watery Lenses
Tweet How to Make a Water Drop Magnifier You Will Need Styrofoam or polystyrene plate Cling Film Tape Scissors Eye dropper (optional) Bowl or container Small objects: blades of grass, flowers, coins, stamps, beetle, ant, fly etc Water Instructions Cut a hole out of the middle of the plate – about the size of [...]
Experimenting With Naked Eggs or: Naked Eggs Part Two
Tweet If you made naked eggs in Naked Eggs Part One you can now experiment with them in Naked Eggs Part Two! Find out about osmosis – the movement of water across a membrane. You will need: at least 2 naked eggs, containers large enough to hold a single egg and some liquid (coffee mugs [...]
Naked Eggs (Part One)
Tweet A naked egg is an egg without a shell. Using vinegar, you can dissolve the eggshell—without breaking the membrane that contains the egg. You will need: a few eggs white vinegar a container big enough to hold all your eggs and a cover for the container a big spoon Instructions: Here’s how you [...]
Scientific Slushy!
Tweet Cool off and amaze your friends by making any soft drink or soda turn into a slushy on command. Here’s how to do this fun and refreshing supercooled science project. You will need: A soft drink A freezer Any soda or soft drink works for this. The slushy project works especially well with 16-oz [...]
Racing Lolly Sticks
Tweet How do you make a lolly stick race across water? Would you believe me if I told you all you needed was a drop of washing up liquid? You will need: Water and a large container – we used our water table, but you could even do it in the bath. Washing up liquid [...]
Investigating Soft and Hard Water
Tweet Tap water in many parts of the country contains minerals that can interfere with the cleaning ability of detergents. Water softeners remove these minerals. In this experiment, you will make “hard” water from distilled water, which contains no minerals, and is therefore “soft.” You can then compare the sudsing ability of a detergent in [...]
GLUE-P!
Tweet Plastics are all around us. There are many different kinds. Most plastics are made in factories, but here’s a version of a popular one you can make yourselves. You will need: 1 teaspoon laundry borax, 1 tablespoon white glue, Food colouring (optional), Two cups Spoon Water Instructions In one of the cups, dissolve 1 [...]