Materials needed:
Strong tube + Rubber glove + Scissors + Tape + Straw

Experiment with rubbish
Discover fun and educational science experiments you can do at home using everyday rubbish and recycled materials! Turn trash into treasure with hands-on activities that inspire creativity, learning, and sustainability for the whole family.
Sound like an elephant with just some garbage!
Strong tube + Rubber glove + Scissors + Tape + Straw
Stretch the glove over the end of the tube so that only the thumb part is sticking up.
Tape your glove to the tube then cut the tip off the thumb part of the glove.
Tape the straw inside the thumb opening. Stretch the thumb to the side, so that it is at over the edge of the tube, and blow through the straw.
Experiment with instruments as you explore how strings make sounds!
A cylinder with one open end, a cup is easiest to start with + String + Sharp pencil + Damp fabric
Carefully poke a small hole in the bottom of your cup with the sharp pencil. Push the string through the hole. Make sure the hole is not too big.
Tie a few knots on top of each other on the side that is in the cup.
Get a damp piece of fabric and drag it down the string.
Explore historical engineering with these simple catapults!
Nine paddlepop sticks + five rubber bands or tape + one spoon + light item to launch, like a ping pong ball or pom pom.
Bunch 7 paddle pop sticks in a stack and hold them together with rubber bands on either end.
Connect the other paddle pop sticks together at one end with a rubber band, then wedge the stack between them and hold in place with a rubber band.
Slide the end of the spoon under the rubber band in the middle and wrap another rubber band around it at the top of the paddle pop stick.
Investigate air with these rubbish air cannons!
Cup + Balloon + Tape + Scissors + Sharp pencil
Carefully poke a hole in the bottom of the cup with your pencil. For this one you want to poke right through so the hole is as wide as the pencil.
Tie a knot in the balloon, cut off the top third. To deflate used balloons, tape the top and poke a small hole through the tape with a skewer.
Stretch the remaining balloon end over the cup's opening, tape it securely. Pull the knot back and release to launch your air cannon.