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Magnetic Coins Science Experiment06/01/2020

Have you ever wondered why some metals are magnetic and others aren’t? It’s all to do with what they are made out of. To find out, get some coins out of your pockets, it’s time for a test! Today we’ll do a science experiment to see if your coins are magnetic or not depending on how old they are. This experiment is perfect for children in Key Stages 1, 2 and 3 to help them to understand more about why some metals are magnetic and others are not.

You will need: Magnetic coins equipment

  • A bunch of coins including one pennies, two penies, fives and tens.
  • A magnet, you can get some super strong magnets which we used in this experiment here.

Method:

  • Search your house and your pockets for coins!
  • Place all your ones, twos, fives and tens on a flat surface. You may wish to make them into a shape or pattern to make the experiment more exciting or could group your coins into 1ps, 2ps, 5ps and 10ps.
  • Run the magnet over them and see which ones are attracted to the magnet, these are the magnetic coins!

The science bit: magnetic coins experiment

  • Since 1992, 1ps and 2ps have been made out of copper-plated steel instead of the previous alloy of copper, tin and zinc. Steel is magnetic so pennies made after 1992 will be attracted to the magnet when it is close to them. Pennies made before this will not be magnetic.
  • Since 2012, 5p and 10p coins are made out of nickel-plated steel. You had magnetic coins in your pockets all along without knowing! 5p and 10p coins made before this date will not be magnetic.
  • For other coins like 20ps and 50ps, their composition is 75% copper and 25% nickel. Because copper is not magnetic and there isn’t enough nickel in them, these coins won’t be attracted to the magnet.

Flying sleigh Science Experiment02/12/2019

Want to learn about the laws of motion with a fun science experiment? Here’s a Christmas science experiment to help your children or pupils understand motion, with a flying sleigh!

You will need:Equipment Christmas Science Experiment

  • A balloon
  • A sleigh template, that you can customise, you can find ours here
  • A piece of straw (around 1 inch long)
  • A piece of string
  • Tape

Method:

  • Cut a small piece of straw and pass the string though it.
  • Print and cut out sleigh. You can decorate the sleigh to make the Christmas science experiment even more Christmassy!
  • Blow up the balloon without tying it.
  • Stick the straw on top of the ballon and the sleigh on the side of the balloon.
  • Stretch out the string on both ends so it is completely taught.
  • Let go of the balloon and see the sleigh slide along the string!

The science bit:Christmas Science Experiment

    • The balloon (and the sleigh) move because of Newton’s third law! Newton said that every action has an equal and opposite reaction. In this case, when air moves out of the balloon in one direction, the balloon and sleigh are forced in the opposite direction.
    • Why not try this experiment with Rudolph or a Snowman? You could even use different types of balloons like a long balloon. You can find some long balloons here!

Enjoyed this experiment? Why not check out some other Christmas science experiments on our blog!

Chromatography Snowflakes25/11/2019

Here we’ll learn to create a colourful Christmas snowflake and learn about colour composition at the same time! This is a great Christmas science experiment to keep the children busy over the festive period.

You will need:Equipment required to create a colourful Christmas science experiment

  • A square sheet of chromatography paper. You can buy blotting paper from Amazon which works just as well.
  • Scissors
  • Pens
  • Water
  • Pipette/straw

Method:

  • Fold the square sheet diagonally two to four times.
  • Cut different shapes on the edges of the final triangle to make it into a snowflake. Why not make this science experiment more interesting by doing a few different snowflakes with different patterns?
  • Unfold your snowflake and draw some (Christmas) patterns on it, using preferably darker colours. Darker colours work best because they have more light colours hidden inside of them. Try using lots of different shades of black and brown to see which work best!
  • Fill up your pipette and spread some water over your drawings. If you don’t have a pipette, you can use a straw instead, Put the straw into the cup of water, hold your finger over the top end of the straw (covering the hole) and take the straw out of the water. Just like a pipette, the straw will suck up the water and when you remove your finger, the water will come out of the end of the straw.

The science bit:

final result of the Christmas snowflakeWhen dark coloured pens are made, they are a mix of different lighter colours. When you spread water on the pen’s ink, the lighter colours move further away from the darkest ones, revealing themselves on the paper. See here black turns out to be made of blue and pink! Give this Christmas science experiment a go a see what results you get.

River Formation Experiment – Children’s Science Experiment03/01/2019

Do your children know how rivers form? Some of them form with underground springs and others start when rain falls over mountains. Here is a fun and easy science experiment for your children to understand river formation!

You will need:Equipment for a River Formation Experiment

  • Three sheets of paper
  • Tape
  • A pen
  • Water
  • A small spray bottle, you can find one on Amazon

Method:

  • Stack two sheets of paper on top of each other.
  • Make your hand into a fist and cover your fist with the two sheets of paper.
  • Crumple them around your fist, then remove your fist and crumple them even more.
  • Unfold the crumpled sheets a bit and stick them down to the remaining one with tape.
  • Take your pen and colour in the ridges of your mountains. The ridges are the long and narrow parts of the moutains, usually they’re quite high up.
  • Now using the spray bottle, spray some water over your mountains until drops start to trickle down. The drops on the sheets show you the path rivers would take on your mountains! The big drops at the bottom could be lakes. Well done, you’ve made a river formation experiment!

The science bit:Final Result - River Formation Experiment

    • As rain falls over the mountains, the water trickles down the ridges of the moutains into streams. As the streams grow bigger and bigger, they become rivers.These rivers take up speed and run all the way down the moutains! They will eventually reach lakes and seas on their way, completing the water cycle.