The plant idea is good - with sun/without sun, or soil versus sand versus stones for earth.
Or maybe use just water in saucers and add a cut top of a carrot. Watch the tiny leaves appear in the end of the carrot and add fertilizer to a couple, and change the variables with light/warm and all that. This carrot one takes weeks to let the carrot tops appear, so maybe not good for a 7 year old.
2006-12-18 08:29:34
·
answer #1
·
answered by thisbrit 7
·
0⤊
0⤋
Potato Plant, before and after a few weeks. Have him take a potato from your cupboard. Poke 3 toothpicks around the middle of the potato and set the toothpicks on a glass filled almost to the top with water. Make sure to rewater everyday. Eventually it will sprout into a plant. You can do a before and after photo of the growth from a household russet potato.
2006-12-18 08:26:44
·
answer #2
·
answered by valerie s 3
·
0⤊
0⤋
My favorite science fair activity is collecting the ice in fast food places' ice machines and doing a comparason to the water in the toilet. It usually turns out that the ice has more fecal matter in it. This is a good "gross" project for boys that age and it has some real merit.
2006-12-18 08:21:57
·
answer #3
·
answered by sfox1_72 4
·
0⤊
0⤋
A science project should involve comparison of different entities, which could be the same item at different times or two (or more) different items. The project should be long enough that it takes longer than a few minutes, but short enough to hold the interest of the experimenter.
The ideal subject for meeting these criteria is RADISH SEEDS! Initial results can be noted in two or three days, the experiment can be as simple or as complex as the researcher desires, and the final results can be shared with a class... or eaten!
Growing medium:
simple... outside in the soil
medium... inside, in pots (boxes, cartons) filled with garden soil
complex... containers filled with sand (no nutritive value) with added elements
Growing conditions:
simple... outside with a box covering some plants to control light
medium... inside with several covers to allow different amounts of light to hit different plants
complex... differences in light amount & type (sun or artificial), heat, humidity (wrapped in plastic to keep moisture)
Moisture:
simple... outside, water some more than others
medium... inside, water daily or every other day
complex... apply water to soil only, apply water to soil and leaves, mist leaves only with little water to soil
Nutrients:
simple... outside, add some fertilizer to some
medium... inside, add different items (fertilizer, (coffee grounds, etc) to soil
complex... add different elements (nitrogen, phosphorus, etc) alone or in different combinations and concentrations
In other words, these simple seeds can provide opportunities for scientific investigations for every age from preschoolers (who may simply plant and watch) to PhDs doing advanced research. This may eventually be extended to other plants and create a lifelong interest in botany.
I'd still be doing my own studies of these seeds, but radishes make me burp! LOL
2006-12-18 16:44:47
·
answer #4
·
answered by sagacity_ron 2
·
0⤊
0⤋
When i was 7 i had the most fun using magnets. Try using different types of magnets on all different types of metal. Then see how fast and how strong the object comes to the magnet. By the way... I'm 12 right now so i remember. (=
2006-12-18 08:26:18
·
answer #5
·
answered by Rikki-Bobbie 2
·
0⤊
0⤋
helpful - great to be certain a actual question extremely of all of the pop gossip nonsense! Can plant life strengthen without soil? Can plant strengthen in water in easy terms? How plenty easy does it take to strengthen plant life? What are the suitable and worse lighting fixtures types? what form of sunshine is suitable>/ How long? Do tall plant life produce greater produce than short plant life? How close is merely too close to to plant life seeds for suitable consequences.
2016-12-15 03:43:20
·
answer #6
·
answered by tollefson 4
·
0⤊
0⤋
I remember doing a lot of projects with plants. Like, growing a plant with and without sun and see which one would grow the most. Of with water versus with sugar water, stuff like that.
2006-12-18 08:24:43
·
answer #7
·
answered by Anonymous
·
0⤊
0⤋
Try doing a search in ask.com. or do a search for lesson plans, science projects.
what is your son studying in 2nd grade? check the concepts and see if there's something you can adapt to a project.
2006-12-18 08:30:35
·
answer #8
·
answered by a1nos 2
·
0⤊
0⤋
How Airplanes Work
make one out of cardboard and label the parts and write a paragraph about thrust or something.
2006-12-18 08:29:29
·
answer #9
·
answered by Anonymous
·
0⤊
0⤋
Uhmmm, a volcano or a planet project, I think something simple, second graders don't have to do much to impress ppl.
2006-12-18 08:21:11
·
answer #10
·
answered by Lil_ jay 1
·
0⤊
0⤋