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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 [...]
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 [...]
Water Molecules on the Move
Tweet This experiment is great for testing if hot water molecules really move faster than cold ones. Pour some water, drop in some food colouring and compare results. A simple classic experiment worth revisiting. What you’ll need: • A clear glass filled with hot water • A clear glass filled with cold water • Food [...]
Diving Ketchup!
Tweet There are many variations on this effect – we’ve covered the concept before. However this has to be the simplest to do with the best explanation. Place a ketchup packet in a bottle of water and make it rise and fall at your command, as if by magic. Of course, the magic involves some [...]
Suspended Bottle
Tweet This is another of those experiments that look like magic – but are really science of course. You will need: Coke bottle or any other plastic screw top bottle Uncooked Rice A pencil or chopstick or any other straight rod Instructions 1. Fill the bottle with uncooked rice. 2. Plunge the pencil straight [...]
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 [...]
Sudsy Lemon Science
Tweet Here’s a fun activity with a dash of ‘science magic’ that children can perform with your help, using basic materials found in the kitchen. You will need: Empty plastic cups Fresh lemons, sliced into quarters 1 teaspoon baking soda 2 teaspoons washing up liquid Measuring spoon Plastic spoon or straw for stirring Wet and [...]
Rainbow in a Jar
Tweet Another one that could hardly be simpler, but is also very good science and in this particular version makes a display of wonderful colours. You will need: Blue washing up liquid Corn Syrup Blue and Red food colouring Olive Oil Rubbing Alcohol (Isopropyl Alcohol – available from the chemist) Plus… a spoon measuring cup [...]
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 [...]
Sharpie Tie Dye
Tweet Let’s do some tie dye…except you don’t have to tie anything! Normal tie dye can be messy and time-consuming. You can get a really cool effect using coloured Sharpie pens on a t-shirt. This is a fun project that even young children can try. You’ll get wearable art and may learn something about diffusion [...]