The diagram shows a tray of marbles being shaken from side to side. As this happens some of the marbles jump out of the tray. Explain how the tray of marbles is acting as a model for the evaporation of a liquid.

Who won the world record for swimming 800 meter Olympic games?

A gas has an initial volume of 168 cm3 at a temperature of 255 K and a pressure of 1.6 atm. The pressure of the gas decreases to 1.3 atm, and the temperature of the gas increases to 285 K. What is the final volume of the gas?

Which of the following foods are rich in protein: Question 9 options: avocado cottage cheese fruits vegetables

Rahul goes to school daily on his cycle. It is his daily observation that he needs to apply more force to start the cycle to move, as compared to when the cycle is in motion. Explain.

Is this good? Its for a science test ~ The process of natural selection happens in nature when organisms slowly change overtime to adapt to their environment.

In a chemical reaction, one element replaces another element in a compound to form a new substance. Which of the following best describes this type of chemical reaction? Combustion Neutralization Double Replacement Single Replacement

If the Earth's crust contained twice as much iron as it does, would atmospheric oxygen buildup have been slowed down or sped up during the past 2.

Which of the following statements is true? A. Energy can change from one form to another. B. Matter and energy do not interact. C. Energy cannot be stored. D. Energy does not transfer from place to place.

Work is done when a force A. is exerted while pulling a wagon up a hill B. acts vertically on a cart that can only move horizontally C. is exerted by one team in a tug of war when there is no movement D.

From whom should a departing VFR aircraft request radar traffic information during ground operations?