Grow beans. Any dried bean from the grocery will work :) Look at the differences in light and temperature on the beans development...how many days does it take to germinate, how fast does it grow, why is it darker or lighter in color, etc. For light stick one in a closet, one in a southern facing window sill, one under a desk lamp, for temperature, put one outside, one in the garage, one in the kitchen, and one on a heating pad. Your control would be the one in the kitchen because it is close to room temperature usually (72 degrees F) and gets "normal" lighting conditions. Watch them for about 2-3 weeks and record the results. It takes about 3-5 days to germinate usually (if you live up north, the one outside probably won't).
the volcano and a piece of thread ice cube in water and tell him to pick the ice out of the water with the thread can't touch ice with hands put the thread over the ice drop a little salt on it wait a few seconds and pull the string up with the ice melted the thread and refroz
try taking a raw egg put it in some white vinegar just enough to cover the egg and watch the change. My third-grade teacher did this with our class it was so great that I have done so with my own children years later . Try bouncing lightly on a table not too hard u might have mess but how ever it is pretty tough.
Light a candle. Mix 1 Tablespoon with 1/4 cup of vinegar in a jar. Let the mixture fizz until it stops fizzing. Then take the jar and "pour" the air out onto the flame, being very careful not to let the liquid pour onto the flame. The flame will "magically" go out. This happens because the vinegar and baking soda create carbon dioxide during the chemical reaction. Carbon dioxide gas is heavier than air and will "pour" onto the flame smothering it. We just did this today for homeschool with my 7 and 8 year old boys as we were talking about mixtures and chemical reactions and the components of air.
Do a sociological experiment on how our brains relates images to words, for example you can have a square and a circle, and ask people to label each one as obo or tiki, well as it results people will assign organic shapes names that have a lower pitch and sharp shapes will be given names that are high pitched, u can do some more research on the actual name for that behavior.
1 year ago
Last edited at 3:44PM on 1/28/2013
Isaac Newton has an experiment that demonstrates friction, surface tension, centrifugal force, and gravity. See www.youtube.com/watch?v=RTbzXfbtyZ4. For explanation of centrifugal force, see staff.washington.edu/aganse/blog/files/centrip.html. Do the following experiments first to demonstrate each force at work:
For surface tension: Put water into a glass until it overflows and look at it from rim level: the water is actually above the rim. Put liquid soap in and see the surface tension break.
I made this one once! Fun, non toxic almost instant, safe to touch, and he can participate in the making! Get some corn starch and some water, mix it together untill like a gravy consistency. First, poke you finger slowly , then suddenly poke your finger with force! I'll leave it to you to see yourself what happens next!