What are Earth's core and mantle made of? Explain how we know.

Which of the following statements is correct? It is 11 a. m. in the Eastern Time Zone; therefore, it is 8 a. m. 12 p. m. 9 a. m. in the Pacific Time Zone. It is 3 p. m. in the Central Time Zone; therefore, it is 4 p. m. 2 p. m. 1 p. m.

What are some similarities between electricity and gravity?

Yellow light has a longer wavelength than green light. Which color of light has the higher frequency?

How to work out current voltage and resistance

When a rock is held above the ground, we say it has some potential energy. When we let it go, it falls and we say the potential energy is converted to kinetic energy. Finally, the rock hits the ground (and stays there).

What is matter in context clues

The metallic elements which all react in water are found in the: same group same period rare earth elements

How much work is required to move a box 5 meters across the floor with a force of 15N?

Why have plants in the alpine biome adapted to survive on limited nutrients?

At a molecular level, does plasma have more or less energy than other states of matter?