![]() ![]() Then pull the two sticks apart and place the bigger stack of sticks in between them so that an angle creates between the two sticks. Then take two more popsicle sticks and secure another rubber band to their end. ![]() Take a bunch of popsicle sticks and stack them together and secure them with a rubber band at one end. When we change the density of something, it changes its ability to float or sink. ![]() When we added salt to it, it increased the density of water, making the egg float.Īgain we observed the effect of density on the floating and sinking of an object. This is because the egg had a greater density than water, and the water couldn't hold its weight. Place the same egg in it again and observe how it floats this time.Īs soon as we placed the egg in freshwater, it sank to the bottom. Now remove the egg and add 6 tablespoons of salt to the water. So it gives that object a negative charge, attracting other things with a positive direction.įill the container halfway with water. Static electricity is a phenomenon when charged particles or electrons are transferred from one object to another. When you brought it near the tissue paper, it attracted the positive charges on the tissue. Electrons were transferred from your hair to the comb when you ran the comb through your hair, making it negatively charged. Static electricity is the phenomenon that made the tissue stick to our comb. Use your comb to lift the tissue in the air. ![]() Run a comb through your hair a couple of times (15 times at least). Take one ply of tissue and cut a small piece out of it. The center of gravity of the raw egg kept changing. The center of gravity is the point of an object on which gravity works. That is why it spins smoothly like a top would do. The cooked egg has a fixed center of gravity because its contents are solid. The raw egg has liquid inside, making it wobble while spinning. One of the eggs spins smoothly while the other wobbles around. Take the other egg and the one you had put in the fridge. Then rinse the egg with cool water and put it in the fridge so that you can't tell which egg is cooked simply by its temperature. Hard boil an egg by boiling it for at least 15 minutes. If its density is lesser than water, it will float. If an object has a density greater than water, it will sink. That is why it sinks to the bottom.ĭensity is the mass of an object per volume. When you peel the orange, you take away that lightness, and the water cannot support its weight. This makes it lightweight and causes it to float just like a lifejacket. The peel of an orange is filled with pores and hence traps air bubbles. Put it in the water again, and watch how it sinks this time Don't fill it up to the rim to prevent water from splashing out. Here is a list of 5 physics projects that will teach them the concepts of density, gravity and much more.įill a big jar with water. It gives them a hands-on experience with these cool physics experiments and helps develop a fondness for the subject. Physics might sound very daunting, but there are so many cool physics experiments to do at home that make difficult concepts easier for kidsto understand. Who needs Bell Atlantic? - Learn about sound waves through the old cup/string telephone game.What are the names and different functions of the six most common simple machines? What's so simple about these SIMPLE MACHINES - Use old and broken toys to examine the use of simple machines.Which Hot wheel car will be the fastest to make it to the bottom of each ramp, Why? Which tracks will all cars move down the fastest and which one will they move down the slowest, Why? One, Two, Three Isaac Newton and Me! - Investigate Newton's Laws with matchbox cars.Which paraffin square will melt first? How long will it take of all the squares to melt? It's Coming To Me! - Examine the physics of energy conduction with some paraffin.Which lab magnet is the strongest? Which is the weakest? What part of a magnet is the strongest? Flexing those Magnet Muscles! - A fun lab that examines magnetic fields.Why do three different spheres roll down an inclined plane at different rates? Battle of the Spheres - Investigate the impact of inertia on velocity with marbles.In this section of our web site we feature teacher tested and kid approved physics labs. Physics is seen as the most fundamental science. Physics is the study of matter and energy and how they interact. ![]()
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