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Week 3

WALT: have a go at conducting Science experiments at home!

 

Here you will find a great set of Science experiments to conduct with kids at home.These fun and easy science experiments are great to do at home because they require ingredients you are likely to already have in the kitchen.

 

The pack contains four different science experiments including a dissolving experiment, make your own lava lamp, fun with density and fireworks in a glass. 

 

Designed by teachers, they are sure to inspire your children to take an interest in different areas of science and bring the laboratory into the classroom.

Week 2

WALT: describe squashing, bending, twisting and stretching.

 

How can you change the shape of an object?

 

Find a slip or scrap of paper in your house that no one wants and isn't important. How could you change the shape of your piece of paper?

 

Key Vocabulary:

squash - to squeeze something with force so that it becomes flat

bend - to shape something straight into a curve or angle

twist - to curl into a distorted shape

stretch - to make longer or wider without tearing or breaking

force - a push or a pull

 

To change the shape of an object, you need to apply force to it. A force is a push or pull motion. Do you know the difference between a push and a pull force? You can change the shape of an object in one of four ways - you can squash, bend, twist or stretch an object!

 

Today we are going to make and test the properties of putty!

 

You will need:

  • 45g cornflour
  • 60ml washing-up liquid
  • Food colouring (optional, if using colourless washing-up liquid)

 

To make your putty, just mix your ingredients together! If your putty is too sticky, just add more cornflour until it forms into a malleable ball. Why is it important to get the amount of ingredients correct? What words can you use to describe how you're testing the putty?

 

Can you recipe for how to make silly putty? Use the sentence starters and word bank to help you. Draw pictures in the boxes too!

 

Word Bank:

stretch squash force
bend make  twist

 

Firstly, ________________________________________________________________________________________________________________________________________________

 

Next you should, ________________________________________________________________________________________________________________________________________________

 

To finish making your putty, ________________________________________________________________________________________________________________________________________________

 

When it's finished, you can ________________________________________________________________________________________________________________________________________________

Week 1

WALT: explore the properties of a variety of balls.

 

Which ball is the bounciest?

 

Explore all sorts of bouncy balls and investigate which one is the bounciest. Does this mean the ball that bounces the highest or the one that bounces for the longest time? Plot the results on a chart.

 

1. Collect a variety of balls from around your home. Check outside in your garden, upstairs in your bedroom and even borrow your dog's!

 

2. Would you choose a ball of plasticine to play tennis or table tennis? Why not? Do you think the squashy ball will bounce well? What sort of balls do you think will bounce best? Discuss these questions and write down their ideas and theories.

 

3. Why do you think balls bounce? Explain that balls bounce because they are elastic. When a ball hits a hard surface its shape changes – the part touching the ground flattens slightly. It gets back into its original shape quickly and bounces back up.

Watch this video of a ball bouncing in slow motion.

 

4. Watch how the ball flattens and goes back into shape. Look at all of the balls you have collected. Choose which ball you think will be the bounciest and to try and explain why.

5. Think about dropping your balls (not throwing) from the same height onto the same surface. Discuss how you are going to do this. Are you going to drop two balls at the same time and compare the bounces? Are you and your family going to all stand in one line and then drop each ball at the same time? Once you have decided, discuss how you're going to measure the height of the balls when they bounce back. My idea would be to stick paper to the wall at the height the ball bounced.

 

6. Drop each ball from the same height onto the same surface and mark each bounce with paper on the wall.

 

7. Can you measure the lines on the wall in cm? This way you will be able to record your findings in a chart.

An example of what your completed chart could look like.

8. Why don't you extend your investigation further? You could find out which surfaces are better for bouncing? Do you think balls bounce well on sand? Do they bounce well on wood? Take just one of your balls - a fairly bouncy one - and drop it onto other surfaces e.g. carpet, tiles, wood, and note the height of each bounce.

 

9. Have you discovered anything interesting? Have you been surprised by anything today? Then ask them to ponder on these questions: Can you imagine what life would be like if we bounced like balls? What surfaces would be best to walk on? How could we decrease the bounciness?

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