Mendeleev noticed that if he organized the elements by atomic weight certain patterns emerged. for instance, elements in the same group (family) appeared to have the same

Car A has a mass of 1,200 kg and is traveling at a rate of 22 km/hr. It collides with car B. Car B has a mass of 1,900 kg and is traveling in the same direction at 25 km/hr.

Where would you expect to find extrusive igneous rock?

Which type of mountain forms because of two oceanic plates colliding?

How much energy is contained in the mass of a 60-kilogram person?

An alpha particle 1) is identical to a helium nucleus 2) can penetrate a sheet of aluminum 3) has a negative charge 4) all of these

What is the most advanced life form on earth

Which EM wave is about the size of humans?

Describe how the Catapult works?

Newton's third law of motion states that the force pair acting on different objects consist of two forces that

While working on her science fair project Venus connected a battery to a circuit that contained a light bulb. Venus decided to change the light bulb to a higher resistance, but she wanted to keep the current the same.