Make a Stethoscope

 Stethoscopes are used by doctors to listen to a person’s heart. The heart is a muscle that sits in your chest and works as a really powerful pump. It pumps all of the blood around your body  

The first thing that you are going to do is roll your piece of card into a cone. You are then going to tape the cone so that it stays together and trim the bottom of the cone so that it is flat.

The next thing you are going to do is tape your cone to your kitchen roll tube 

You can now use your stethoscope. If you put the funnel end of the stethoscope to the chest of a friend, you should be able to hear their heartbeat. If you have a watch you can count how many beats there are in a minute. 

You could also compare how many times your hear beats in a minute when you have been sitting down compared to after you have done some exercise. If you do something, like 10 star jumps, or running on the spot for a minute before measuring your heart rate, does it beat more or less than if you have been sitting down for a while?

The video tutorial for this activity is available on the Surrey Libraries Facebook Page or the Surrey Libraries YouTube Channel

Listen to your Heart...

    For our next science activity we are going to be making a Stethoscope!

We will be releasing this activity on the Surrey Libraries Facebook page on Thursday 4th February at 4:30pm. 

For this activity you will need:

• A piece of A4 Card
• A Kitchen Roll Tube
• A Pair of Scissors
• Tape

For more information watch this short introduction video 

Follow Surrey Libraries on Facebook and Twitter for the latest information and don't forget to visit Science Club on the Surrey Libraries YouTube Channel

Make a Mobile Phone or Tablet Speakers

 Sound is made when an object vibrates. The vibrations enter your ear and make your eardrum vibrate. This sends a message to your brain which turns them into the sounds that you can hear.

You may need an adult to help with parts of this activity

To make your speakers the first thing that you need to do is draw around the end of the kitchen roll tube on the side of the paper cups. You can then cut this hole out on both paper cups. 

In the centre of the kitchen roll tube you are then going to cut a slit that is big enough for your mobile phone or tablet to fit in. It might help if you draw around your device so that you know how big a slit to cut

You can now fit each end of the kitchen roll tube into the hole that you cut in the paper cups. You may need to tape the kitchen roll in place if the fit is loose

Your speaker is now ready to test...

The way the speaker works is that when you add a phone or tablet, it amplifies the sound by directing the sound waves out at a different angle. It creates a funnelling effect. It you think about a megaphone it works in a similar way to may the sound come out louder. 

The video tutorial for this activity is available on the Surrey Libraries Facebook Page or the Surrey Libraries YouTube Channel

Turn the Music Up!!!

  For our next science activity we are going to be making a speaker for a mobile phone or tablet!

We will be releasing this activity on the Surrey Libraries Facebook page on Thursday 28th January at 4:30pm. 

For this activity you will need:

• A kitchen roll tube
• 2 paper cups
• A pen or pencil
• Scissors
• Tape

You may also like to collect some colouring pens/ pencils or other things to decorate your finished speakers

For more information watch this short introduction video

Follow Surrey Libraries on Facebook and Twitter for the latest information and don't forget to visit Science Club on the Surrey Libraries YouTube Channel

Make a Model Lung

 

The Lungs are part of the respiratory system. To breathe you need more than just your lungs, there are several different organs and tissues working together every day.

The first thing that we are going to do is cut the bottom off your plastic bottle. You might need an adult to help you with this part. This is going to represent your chest

We are then going to get one of the balloons and tie a knot. We are then going to cut the end off the balloon and stretch it over the bottom of the plastic bottle and tape this in place so that no air can escape. This is going to represent your diaphragm. 

We are now going to get your second balloon and tape this to your straw. Make sure that you tape it securely so that no air can escape. We are now going to push the balloon into the plastic bottle and seal the top around the straw using some sticky tac. The balloon will represent one of your lungs and the straw will represent your windpipe. 

Now if you pull on the balloon on the bottom of the bottle you should see that the balloon expands and when you let go it deflates. This is a similar process to what happens when you breathe. 

 What is happening is that as you pull the balloon at the bottom, it creates more space in the bottle, so air enters through the straw and the balloon inflates to fill the space. As you let go the amount of space for air decreases and so air is pushed out through the straw and the balloon deflates. 

When we breathe in, our diaphragm moves down, creating more space in our chest. This allows air to move through our nose and mouth, into our windpipe and then into the lungs as they inflate. In the lungs, oxygen enters the body and carbon dioxide leaves. Then when we breathe out the diaphragm moves up, reducing the space in the chest, forcing the air out of the body, and deflating our lungs

The video tutorial for this activity is available on the Surrey Libraries Facebook Page or the Surrey Libraries YouTube Channel

How do you breathe???

 

  For our next science activity we are going to be making a model of our lungs and learning about how they work!

We will be releasing this activity on the Surrey Libraries Facebook page on Thursday 21st January at 4:30pm. 

For this activity you will need:

• A plastic bottle
• 2 balloons
• Tape
• Sticky Tack
• A straw
• Scissors

For more information watch this short introduction video

Follow Surrey Libraries on Facebook and Twitter for the latest information and don't forget to visit Science Club on the Surrey Libraries YouTube Channel

Make Cornflour Slime

Cornflour and water is an example of a non - Newtonian fluid. This means the way it moves doesn't just depend on temperature, it also depends on the force applied to it, or the speed of something moving through it.

The first thing that we are going to do is pour some cornflour into the bowl. We are now going to slowly add water to the cornflour in the bowl and mix the mixture very slowly until you have your slimy cornflower mixture 

If you try running your fingers through it you will see that you have a liquid, but if you try and hit it or stir it quickly it becomes solid, you could even try walking on it if you make a large amount and see what happens. 

The reason this works is that cornflour contains lots of starch. When this mixes with water it is able to move between the water particles and become a liquid but if a rapid force is applied the starch particles lock together and it becomes solid. 

The video tutorial for this activity is available on the Surrey Libraries Facebook Page or the Surrey Libraries YouTube Channel