Ketchup Volcano!

Ketchup Volcano!

Feb 25, 2014 | No Comments

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

Blue Sky – Red Sunset

Feb 20, 2014 | No Comments

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 [...]

Heat Transfer

Heat Transfer

Feb 14, 2014 | No Comments

Tweet Another simple thermal energy investigation. An important aspect of thermal energy is Heat Transfer, and older primary school students can begin to understand the concept of insulation and heat transfer as it relates to thermal energy. You will need: A number of different materials, perhaps including… a metal pie plate a fleece-lined sweatshirt an [...]

Thermal Things

Thermal Things

Feb 11, 2014 | No Comments

Tweet A simple thermal energy experiment While our planet receives thermal energy from the sun, some devices consume energy, which is also given off in the form of thermal energy. This is a simple experiment which will demonstrate energy consumption as we measure how much thermal energy light bulbs give off. You will need a [...]

Electromagnet – the improved version

Electromagnet – the improved version

Feb 6, 2014 | No Comments

Tweet Making an electromagnet is fun and easy. You will need A large iron nail (about 3 inches) About 3 feet of THIN COATED copper wire A fresh D size battery Some paper clips   Instructions 1. Leave about 8 inches of wire loose at one end and wrap most of the rest of the [...]

Water Molecules on the Move

Water Molecules on the Move

Feb 4, 2014 | No Comments

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 [...]

Honeycomb Candy

Honeycomb Candy

Jan 30, 2014 | No Comments

Tweet This is an easy-to-make kitchen science confection that has an interesting texture caused by carbon dioxide bubbles getting trapped within the honeycomb. Ingredients 150 gms sugar 2 tablespoons honey 2 tablespoons water 1-1/2 teaspoons baking soda Greaseproof paper Oil, butter or non-stick cooking spray Instructions Coat a sheet of greaseproof paper using oil, butter, [...]

Diving Ketchup!

Diving Ketchup!

Jan 28, 2014 | No Comments

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 [...]

Sponge Rock

Sponge Rock

Jan 22, 2014 | No Comments

Tweet This experiment will show you how a piece of chalk can absorb a great deal of water in a short time. You will need: A piece of chalk Cup of water A Spring Balance or Newton Meter (either way it needs to show grams)   Instructions 1. Weigh the chalk with the spring balance [...]

Frozen Rock

Frozen Rock

Jan 21, 2014 | No Comments

Tweet Do this experiment to see what kinds of rocks break down the most when frozen, thawed and frozen again. You will need: Several different kinds of rocks, such as granite, sandstone, or limestone Plastic bottle or container Water Freezer …and several hours – this is a long format experiment.   Instructions Look at each [...]