Does anyone have a great but yet simple science project in mind?

Answer 1

If you're any good with electronics, you can try these two simple ones that I did in 6th and 7th grade that placed in the science fair:

1. Take a large flashlight, remove the bulb and batteries, and insert a length of insulated copper wire (the higher the gauge, or thickness, the better, as it makes the wire both sturdier and more pliable) approximately 3 feet in length, and strip the insulation on that end, so that the piece of exposed wire connects with the spring. Reload the batteries. Attach another length of insulated copper wire, around 2 feet in length, to the bulb (you will more than likely have to unscrew the bulb - strip the end of the wire, wrap it around once, then reseat the bulb.) Screw the top back on, and you have two wires coming from the flashlight. Measure a length of your own choosing on the longer piece (although not too long - around a foot should suffice), and strip the insulation off. On the shorter piece, strip only about an inch off and form into a loop. On the longer piece, now bend it into a bit of an "obstacle course". The object is to slide the loop over the stripped wire without contact - it's a very basic form of "Operation". If the wires connect, the light will come on. The project part comes in measuring who has the better motor skills - girls or boys. Measure not only length but also time, and record your results. Repeat the test several times to get a better average. Who does better? Do they do better on both the length and time? Why do you think this is? Report your hypothesis, your observations and your conclusion. (BTW, you can pick up the wire at any Radio Shack. Make sure it's the long, sturdy kind - ask the rep there for help. The kind I used was green, and the insulation can be stripped with ordinary scissors if need be. The entire thing *might* cost about five bucks.)

2. This one is in the same vein, although it's qualitative, not quantitative - you're not racing the girls and the boys, you're simply comparing them. You might want to get a bit of help with this one, too. You'll need to get:
-1 battery - you'll get better results with a 9 volt, because they battery clips are inexpensive and usually come in packs of 5 or 10 for around $2-3.
-1 variable resistor. Ask the Radio Shack guy for help - you don't want one that has connectors to solder resistors to, you want the kind that's like a volume dial.
-1 slider switch. You can use a toggle, but sliders are much easier to use.
-1 electric motor. They're the kinds that are in toys and video game controllers and radio controlled cars and such.
-1 spool connecting wire, the gauge doesn't matter so much as long as you get it small enough to fit through the slots on the motor. I won't worry with solder; if you're careful enough you shouldn't have to have it.

This might set you back $10, but it'll be worth it. Find a piece of corrugated cardboard or a piece of particle board to use as a mount. Using the wire, attach the battery clip to one connector of the motor, and set the motor upright so that the gear is on top. Tape or glue your components and your wire down. Leave yourself a good six inches per piece, to allow for flexibility - you don't want it to be taut, lest it come unattached. (It's tricky getting electrical tape off in pieces small enough to use for these connectors, they're *tiny*). Attach the other connector of the motor to one connector of the variable resistor. Attach the other connector of the variable resistor to one connector of the slider switch. Finally, attach the other connector of the slider switch to the battery clip. Voila! You have made a motor that spins slower or faster depending on the variable resistor.

Now's the fun part. Using a piece of cardstock or some other similarly heavy paper, construct a circle approximately two inches in diameter. Leave a hole in the middle - you will be attaching this to the motor. (This is why you want it to be heavier - it won't fly off so easily.) On this circle, color in exactly one half completely black. The other half, mark off into four slices (like a pizza), and draw three thick black lines (although not too thick). dropping "in" every level, so as to make sort of a staggered concentric circle. (It'd be better if I could do it in a picture, but I'll try:
___
___
___
......___
......___
......___
............___
............___
............___
..................___
..................___
..................___

I hope that formatted right. Anyway. attach this disc to the top of the motor. Turn it on with the variable resistor at its lowest setting. Wow! You should see some colors! But where did they come from?

This is where the experiment comes in - do boys and girls see colors differently? Test an even number of each, and record your hypothesis: do you think they will see the same number of colors, or do you think one or the other will see a different amount? Why or why not? How, if at all, does increasing the speed of the rotation affect the number of colors seen? Write down what each of them sees, and have them start from the outside and go in.

The first one is a lot simpler, yes, but the second one is a lot better. Go with whatever one you like.

Answer 2

I am a very religious person but also devoted to science. I know all the evidence of evolution down to the molecular level. I can easily see how life evolved on this planet minus some uncertainly about the exact mechanism in the beginning. There is virtually no doubt that all life on the planet evolved from primitive bacteria and they sprung from inorganic matter. We are physically connected to all other life on this planet. The evidence is overwhelming and confirmed by multiple disciplines. I have heard hundreds of theories and ideas about intelligent design. I hear them a lot because I am a Christian. They are all distortions of logic, pure and simple. I had a personal experience that makes me 100% certain that there is a higher being or beings directly involved with our life. The way I look at it is that there may be something to us beyond our physical beings. That is where religion belongs. Trying to disprove evolution is like saying the earth is the center of the Universe. It doesn't fit the mountain of evidence to the contrary. A religious person, if he is rational, will admit that our bodies die. That is the undeniable physical nature of life. Religion deals with the soul and that which is unknowable. I have no particular problem knowing that some things are unknowable to me. Many scientists are so arrogant that they can't see the possibility of a soul because they think they understand the universe. Many religious people are arrogant because they think they are the center of the universe and were given divine knowledge about how it all works.

Answer 3

here's an idea.
homemade perfume

can fruit stay fresh longer in jello

boy vs. girl projects like
scents (who cna smell better)
you cna taste better.
who can breathe better
etc

what makeup barnds last longest
(put nail polish on egg shells and put it threw series of test and see which brand last longest)
this is for nail polish.

sexch up simple science projects & good luck x]

Answer 4

There many things I guess.
The link give some and explain how, click the blue.
http://www.sciencemadesimple.com/projects.html
Why the sky is blue? Looks fun.

Answer 5

what material burns the fastest

get different materials
light them on fire
record the time

simple and great