Question 39
You will need: thin string, a thin plastic sheet, sticky tape, two identical weights (such as small plastic toys), scissors, a stopwatch.
How to make the parachutes
- Cut two squares from the plastic sheet. One square must be 10 × 10 cm and the other square 20 × 20 cm.
- Trim the edges with the scissors to make an eight-sided shape.
- Make a small hole with a pencil near the edge of each side.
- Thread a piece of string about 10 cm long through each hole. Tie knots so that the string does not come through the holes. The strings must be the same length.
- Join the ends of the eight strings with a knot. Attach the object you are using for a weight to the knot with sticky tape.
How to make the parachutes
- Cut two squares from the plastic sheet. One square must be 10 × 10 cm and the other square 20 × 20 cm.
- Trim the edges with the scissors to make an eight-sided shape.
- Make a small hole with a pencil near the edge of each side.
- Thread a piece of string about 10 cm long through each hole. Tie knots so that the string does not come through the holes. The strings must be the same length.
- Join the ends of the eight strings with a knot. Attach the object you are using for a weight to the knot with sticky tape.
