What would a drummer do to make the sound of the drum give a note of lower pitch?

What scientific principle (s) does the toy yo-yo use? Explain in simple words if you can.

Is water wet yes or no?

According to the periodic table, the average atomic mass of helium is

What color is the sky? What colors is the sky made up of?

Compare how pressure and temperature change with depth inside Earth.

What are the two main currents that affect the US on the east and west coast?

What role do volcanoes play in the flow of energy and cycling of matter on earth?

How does uniform linear motion differ from uniform circular motion?

A metal underground water pipe that is in direct contact with the Earth for? or more is a code-recognized as a grounding electrode and must be included in the grounding electrode system.

Bob has been Springfield's top meteorologist for ten years. He received data from satellite imaging and computer models that a huge storm system is headed Springfield's way.