Which scientists discovered the two radioactive elements radium and polonium

How does newton 3 laws relate to an egg drop

Which law of motion accounts for the following statement? "The gravity of the Sun causes the planets to move in a circular path."

When a car burns gasoline, much of the energy is released in the form of heat. Which of the following best describes this process in relation to the first law of thermodynamics? A. Energy is not created nor destroyed, but it can change into matter.

The two upper chambers of the human heart are known as: a. atriums c. auricles b. ventricles d. blood vessels

What are metals? And how are they used?

How can citizens affect environmental policy at the local, state, and national levels

Lightning heats the surrounding air to

Is a broom an example of a wedge?

Use your knowledge of the state of matter and the other physical properties of matter to write an explanation for what may have caused the following situation: Although it hasn't rained in a week, every morning the grass and the car windows are wet.

What is three example of technology