In other words, are plants programmed to grow upwards, or do they grow upwards for another reason? To do this project, start off with growing bean plants in foam cups for a week or two until the shoots have grown a bit.
In your lab notebook, make a data table like this one to record your results in. Check off which ball hit the ground first, or if they hit the ground at the same time. When you are done, add up the total number of trials that you got each result and write this in the "Total" row at the bottom of your data table.
Create a bar graph of your results. You can make a graph by hand or use a website like Create a Graph to make a graph on the computer and print it. Put the result "Heavy Ball," "Light Ball," or "Same Time" on the x-axis the horizontal axis going across and the number of trials you got that result on the y-axis.
Look at your results. Did one of the balls usually hit the ground first, or did they usually land at the same time? Can you explain your results? If you are having trouble explaining your results, try re-reading the Introduction. If you like this project, you might enjoy exploring these related careers: Physicist Physicists have a big goal in mind—to understand the nature of the entire universe and everything in it!
To reach that goal, they observe and measure natural events seen on Earth and in the universe, and then develop theories, using mathematics, to explain why those phenomena occur.
Physicists take on the challenge of explaining events that happen on the grandest scale imaginable to those that happen at the level of the smallest atomic particles. Their theories are then applied to human-scale projects to bring people new technologies, like computers, lasers, and fusion energy.
Read more Aerospace Engineer Humans have always longed to fly and to make other things fly, both through the air and into outer space—aerospace engineers are the people that make those dreams come true.
They design, build, and test vehicles like airplanes, helicopters, balloons, rockets, missiles, satellites, and spacecraft. Read more Physics Teacher Our universe is full of matter and energy, and how that matter and energy moves and interacts in space and time is the subject of physics.
Physics teachers spend their days showing and explaining the marvels of physics, which underlies all the other science subjects, including biology, chemistry, Earth and space science. Their work serves to develop the next generation of scientists and engineers, including all healthcare professionals.
They also help all students better understand their physical world and how it works in their everyday lives, as well as how to become better citizens by understanding the process of scientific research. Read more Variations Try this experiment again, but this time use balls of the same mass, but different sizes.
Does one ball hit the ground before the other, or do they hit it at the same time? Try testing two objects that have the same mass, but are different shape. For example, you could try a large feather and a very small ball.
Does one object hit the ground before the other, or do they hit it at the same time? You could try other objects of different shapes, sizes, and masses. How do they fall compared to each other? In this experiment you dropped balls through the air, but what happens when you drop them through something else, such as through water?
You could try this experiment again but drop the balls in an aquarium filled only with water. Be sure that the balls you are using are safe to drop in the aquarium.
Do you get the same results using water as you did using air, or are your results different somehow? You could turn this physics science project into a human behavior science project by asking people which ball they think will hit the ground first, or if both balls will hit the ground at the same time.
For an example of how to do this, watch this video on Misconceptions About Falling Objects. You will probably need to re-read the information in the Introduction or do some more background research on inertia, gravity, speed or velocityand acceleration first to make sure you understand what result you should get, and why you should get this result.
Do people usually give the right answer?Great Ideas for Science Fair Projects / By Dawn Marcotte / Homework Help & Study Guides Every time you fall down you're experiencing the pull of gravity.
Gravity is defined as the force that pulls everything on earth toward the center of the earth. Gravity is an incredible force, and it’s been studied by scientists for centuries.
You can study gravity too, with these fun gravity science fair projects. If you're looking for some fun science experiments for kids then you've come to the right place. Check out our free experiments section, full of fascinating hands-on experiments that are a great way to enjoy the world of science.
Gravity Device Science Fair Project This is a gravity machine that can be constructed from a candle, a needle, two glasses, and two saucers. Gravity plays an essential role .
RECURRING SCIENCE MISCONCEPTIONS IN K-6 TEXTBOOKS William J. Beaty 3/ WARNING: This file is currently being written, edited, corrected, etc. It does still contain some mistakes of its own. I placed it online as a sort of 'trial by fire' in order to hear readers' responses so I could target weak or unclear sections for improvement.
In order to remain upright while doing something as simple as walking, our body must continuously compensate to the changing center of gravity by slightly adjusting our arms, head, and shoulders forward or backward to keep the center of gravity always directly above our moving feet.