What are the top 10 Science Fair Experiments for Elementary School Students?

Park your car with one tyre each on a sheet of paper. Mark the edge of the flat part of each tyre where it contacts the paper with a pencil. Measure the pressure in each tyre. Calculate the area of each tyre in contact with the paper (length x width). Force = Pressure x area, so multiply each tyre pressure with the corresponding contact area. Sum all four forces. This is how much your car weighs.

1-)Hold a book horizontally and let it fall to the floor. 2-)Hold a sheet of paper and do the same thing. Air resistance delays the paper fall. 3-)Then, hold both things togheder, with the paper liying ON the book, and let them fall. With the book blocking the air, both thing arrive to the floor at the same time. Conclussion: All bodies fall at the same rate-speed. Its only due to air that differences are observed. -------------------------------------------------- 1-) Put a small saucepan on a dish. 2-)Completly fill the saucepan with water. 3-) Carefully put any floating object in the saucepan. Water will overflow and fall in the dish. 4-)Weight the object 5-)Weight the water. Both weights will be the same.(That's why it floats) 6-)Repeat with a non floating object. 7-)Once weighted the object will be heavier than the water in the dish. That's why it sinks. Archimedes Principle. ------------------------------------------------------------------------------ 1-) Take a 1 liter plastic, transparent bottle and remove the base. 2-) Put a ping-pong ball on a table. 3-) Take the bottle and put it on the table, on it's opened base, and with the ball centered inside. 4-) Hold it with your hand and lift it up around 1 cm. (Try to hold the ball more or less centered) 5-) Blow through the bottle neck. The ball will run UP and not down. (Bernoulli statements). Conclussion: Motion=Energy. Common sence, sometimes is not the whole true. Air motion makes planes fly. Let me think a little bit more .....

"Cup of dirt. It's a cup with dirt in it." - Brian Regan. (Put an F on there and let me go home.)

Not sure, but they should be about truth & honesty unlike just about everything taught in public education. If any teachers read this I challenge you to teach the truth & show your students this video to the end: http://www.youtube.com/watch?v=tPc899uUb-A