Items needed two dirty bottles, one with a lid soapy water lid First take the bottle with the lid on it, show it to the class and say: See this bottle is really dirty. Put it in the soapy water and wash it and then rinse it, and wipe it dry. Show it to the […]

Items needed a staircase (maybe the steps onto the stage in your building) Have your class or family stand at the bottom of a staircase and you are at the top. Challenge any one of them to find a way to get to the top of the stairs without touching the stairs or the rails […]

Items needed a very dirty sock Take a sock ( an old one preferably one you don't care about getting real muddy), soak the sock in mud, get it real dirty and then put it in a plastic bag. Take it to your class and during your lesson ask someone if they would mind putting […]

Items needed a few small unbreakable items a lazy susan You need a lazy susan or turntables that go in your cupboard for your spices. Demonstrate in some way how the things in the center spin much slower and don't fly off like the things on the outside. If you can't have the demonstration then […]

Items needed several uncooked spaghetti strands Offer one or two strands of spaghetti to someone in class and have them try to break it. Obviously it is easy, then offer them a package of spaghetti and have them try to break it. Much more difficult, if at all possible. Strength in numbers. This object lesson […]

Items needed a watermelon seed Show the seed and read the following story: "The Bible, or another book of scripture at my father's place at meal times, was the order of the day in our home. He would read a chapter aloud and lead the discussion. "But one day as we assembled for our meal, […]

Decide beforehand which "theory" you are going to test. It could be something simple like theory of gravity, or something else that both you and your audience understand very well. I will use gravity for my example here. You say, "I am going to test the theory of gravity today. I have here some different […]