well I think it’s magnetism . because almost everything has a bit of iron in it. for example here’s a experiment. get a cup. fill it up half way up with water. get a cork .split the cork in half. get a magnetized needle. put the needle on the cork. put the cork on the water. what happens? the needle turns N. because of the earths magnetism.
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Wow! You are really good blogger! I can't wait to see what you will write about next!
ReplyDeleteIf you do any more expirements about gravity, then you might need the formula to calculate the gravitaional force: 6.674 * M * m / r^2
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