Through which one of the following mediums is the velocity of a sound wave the greatest?

A. Water

B. Lead

C. Steel

D. Air

Which of the following happens when ice melts?

If a prairie is burned by fire, what would happen to the animals that eat grass? A.) They would have an increase in their food. B.) They would have a decrease in their food. C.) They would stay on the prairie. D.) They would grow in their population.

My house is 95km away and you are driving at 85 km/h. How long will it take you to get here?

1. standard metric unit of length 2. a proposed explanation for a scientific problem 3. standard unit of volume 4. the curved top surface of a liquid column 5. a quantity in an experiment that remains unchanged or constant 6.

On a cosmic calendar, in which the history of the universe is compressed into one year, when did kepler and galileo first discover that we live on a planet in a solar system

If a forklift raises a 76-kg load a distance of 2.5 m, about how much work has it done?

When a fork is placed in a hot piece of lasagna, thermal energy is transferred up the fork by ...

Levi observed properties of four different waves and recorded observations about each one in his chart.

A rocket is shot straight up from the earth, with a net acceleration (acceleration by the rocket engine minus gravitational pullback) of during the initial stage of flight until the engine cut out at sec.

Which moon has a thick atmosphere made mostly of nitrogen?