|
|
in science class i have to do a project on a hypothesis and give like the independent and depenedent variables and all that good stuff. blecchh. so anyway, does anyone have any good // creative ideas on what i could use? like "my sister can drink a milkshake faster than my mom" or something? please&thankyou. =)
Don't do that experiment, it's crappy because
1. you need a large sample size in experiments and your mom and sister are only two people, and there are only so many milkshakes they can drink
2. It'd be too complicated to measure the scientific reason for who can drink the milkshake faster.
here's one I would do and it's very simple, it'll also pretty much guarantee you an A.
Experiment: Does grass plants grow under better white(normal) light, or green light?
Procedure: Basically what you do is get about 20 grass seeds, put it in a pot and place it under bright light for a week or two(12 hours each day, just leave the light on in your house). Take another 20 seeds, grow it in a pot and leave it under a green light for a week or two (buy a green light bulb). See which grows taller over the period of time. Average the height of each blade of grass in each pot and compare them.
Hypothesis: If a plant is placed under green light, then it will grow taller/shorter than placed under a normal light.
Independent Variable: Different lights, brigth and green light.
Depedent Variable: height of grass
Control Group: plants placed under normal light
Overall, the seeds and the green light bulb and the electric bill for leaving the lights on shouldn't cost you that much money.
Oh yeah and if you need to explain why the grass in the normal light grew taller(which it will), the answer is because plants have a difficulty absorbing green light because the chloryphll pigments in their chloroplasts are not meant to absorb green light. Since it has a difficulty absorbing green light, the plants growing under the green light will have a hard time absorbing light. If a plant cannot absorb light, it cannot photosynthesize which will impair itss ability to grow
Oh, and one final thing. If you don't have to present the grass grown under green or normal light in your final presentation, you could just not grow them and just fake the data and have the average height for the normal light grass be higher than the average for the green light grass. You could probably make charts and stuff to make it look good. however, the scientific answers and everything else i said are all true, if you want to, you can copy paste everything I said onto your science project.
[view]
(Rating: 5)
Thanks so much! =)
| |
