skittles rainbow

Easy Home Science Experiments You Can Do With Your Kids


How do you get kids interested in science? Make it fun and hands on. These science experiments are guaranteed to get your kids excited and you don’t need any science knowledge to do them. Just a bit of common sense and a few household ingredients.

Cornflour Magic

You will need:  1 cup of cornflour (it can be any size), 1 cup of water (it has to be the same cup as the one you use to measure the cornflour), 1 large bowl, a spoon,  and food colour (optional)

Add cornflour into the bowl. Add the water and food colour. Mix and play around with the mixture.

  1.  Scrunch up the cornflour into your hands and see if you pick it all up and roll it into a ball. It will become a ball and look like a solid as long as you keep moving the ball between your hands.

  2. Now keep your hands still with the cornflour ball still in your hands. What happens?

  3. Dip your finger into the cornflour mixture, it should be a liquid. You can stir it gently and it look and feel wet.

  4. Stir it really fast. What happens?

  5. Punch the cornflour mixture with your fist. Did it splash?

You can do this on a large-scale, watch this video with the same mixture in a swimming pool.

Skittles Rainbow

You will need: 1 packet of Skittles, a large flat white plate, some water

Place the skittles in a large circle around the edge of the plate. Add water into the middle of the circle but don’t drown the skittles. Do this carefully so that the skittles do not move. Then keep still and watch what happens.

  1. Repeat the experiment with hot water. Do you see a difference?

  2. Repeat using M and M sweets.

  3. Repeat but make a square shape with the skittles.

skittles rainbow

Elephant’s Toothpaste

You will need: 1 sachet of instant dried yeast, 1 small plastic water bottle, 120 ml of hydrogen peroxide (6% strength), a large squirt of washing up liquid, 3 tablespoons of water, food colouring.

You should have most of the ingredients at home, except for the hydrogen peroxide. You can buy this from any chemist. Hydrogen peroxide has a shelf life and over time it changes to water. So don’t use an old bottle that’s been lying around your house for months.

If you do not have safety goggles, then an adult should do this part.  Hydrogen peroxide can irritate your eyes and skin and safety precautions are written on the bottle. Pour the hydrogen peroxide into the empty water bottle. Then add the washing up liquid and food colouring. You can stir the mixture gently. Now place the bottle in a large deep tray or in the sink as it can get messy.

Children can do this part of the experiment. In a separate container, mix the dried yeast and water. Then quickly pour this mixture into the bottle. Do this quickly if you want some drama.

  1.  Try different food colours.

  2. hydrogen peroxide is available in different strengths, try the same experiment with different strengths.

  3. Try different shapes containers, the longer and narrower the container the quicker the foam rises up and out.

Here’s a video of my experiment.

 

Advertisements

The Science of Teaching Science


My weekly science lessons are the highlight of my week.  Don’t get me wrong, I love teaching on the other days but Tuesdays science class combines my two favourite things – teaching and science.  Students who need science tuition don’t know how to learn science and remember it.  To learn science there are three steps:

  1.  first need to understand it

  2. then apply it to questions or even real life examples

  3. then remember it

When I was at school my Biology teacher would dictate pages and pages of notes for the whole lesson.  Occasionally we had a practical lesson, but the best lessons were the ones where she would ask us to put our books away and ask questions.  We would spend the whole lesson taking turns to ask her questions related to the topics we had been studying. This method of teaching helped us to understand, apply and remember the topic.

My science lessons are student led, I have a lesson planned, but most times I walk in not knowing what I will end up teaching.  I encourage students to use scientific words when asking questions and when talking about science.  New students rarely contribute to class discussions and don’t understand how science matters to their lives.

A new student will ask “Miss, is it true that mobile phones can kill you if you use them too much?”

Whereas a regular student will ask “Miss, is it true that the microwave radiation emitted from a mobile phone can cause mutations and lead to cancer?”

Do you see the difference? This was a question which came up in a physics topic on the electromagnetic spectrum.  The discussion continued onto cancer to treatment of cancer to Ebola to vaccination to drug discovery to forensic science and so on.

I find that teaching science in this way helps the students to remember more as it relates to their lives.  It makes science less abstract and more interesting.

teaching science

My science lessons are every Tuesday from 4.30 to 5.30.  Call 01582 402225 to book your child in.