Science Aims For This Week:
Science Activity 2:
How do we use pulleys, levers and gears to make it easier to create simple machines
You will need:
Watch: https://www.youtube.com/watch?v=jtk2V0M6k3M (Pulley, Wheel, Lever and More Simple Machines).
Think about where in your home and garden you may have come across levers and pulleys.
Answer the following questions in your home learning book:
Open and explore Simple Machines PowerPoint and try the quiz at the end to test your knowledge and understanding.
Investigate: what is the smallest number of coins needed to lift a rubber?
Method: Place the pencil under the ruler. Place the rubber on one end of the ruler and weights on the opposite end. Experiment with different positions of the pencil and different numbers of weights (coins) to find the smallest weight able to lift the rubber. Use the Lifting A Rubber Investigation Worksheet to record your ideas.
Have fun with levers: Build a Lolly stick trebuchet!
How to make a lolly stick catapult:
Extension task: watch this video clip https://www.youtube.com/watch?v=qybUFnY7Y8w of a machine that incorporates pulleys, levers and gears. Have ago at designing your own wacky invention or, even better, try building one using the ideas taken from the video. Don’t forget to film your machine in action!
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