I need Science Experiment ideas! I am in 8th grade and I have to do a Science experiment on whatever I want but I can't think of anything

As a cat pounces on a mouse, its muscles consume 10 units of potential energy (which the cat previously gained from the food it consumed). However, the pounce itself only required 4 units of kinetic energy.

What is an example of kinetic energy

What are the elements that make up halite?

A 0.100 kilogrom apple hangs 1.5 meter above the ground. Ignroing frictional effects, the total mechanical energy of the apple is?

How do you know the earth is rotating on its axis

Ethylene (C2H4) reacts with oxygen gas to produce carbon dioxide and water. 45.0 grams of ethylene reacts, how many grams of carbon dioxide gas will be produced?

What causes ice to melt and water to boil

A block of mass 3.5 kg slides down a frictionless inclined plane of length 6.4 m that makes an angle of 30 degrees with the horizontal. if the block is released from rest at the top of the incline, what is its speed at the bottom

What is the wavelength of an earthquake wave if it has a speed of 5 km/s and a frequency of 10 Hz?

The gamma ray released by each decay carries 140kev of energy. find the total energy e released by decays in the 2 hours.