Elements on the Periodic Table of the Elements

are classified into categories such as

(1) rocks and minerals

(2) molecules and atoms

(3) mixtures and compounds

(4) metals and nonmetals

When can a theory be modified if a new type of technology allows for new observations that raise new questions?

If you put a drop of food coloring in water and watch the drop disperse, is entropy increasing or decreasing.

What is the current when a 71-W lamp is connected to 120 V?

What is the rotational kinetic energy of the sphere?

A student allows the evaporating dish and the anhydrous salt for a long time on the lab bench. What will happen to the mass of the content of the evaporating dish as it cools and how could this be prevented? G

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.