You place a beaker of water on a hot plate and heat it up eventually it starts to boil and you see bubbles for me you also seemed steam rising from the water surface is it physical or chemical change

Sasha uses a basketball and a tennis ball to represent two astronomical bodies based on their sizes. Which of the following representations is the most correct based on what Sasha has?

Two objects attract each other with a gravitational force of 25 newtons from a given distance. If the distance between the two objects is reduced by a factor of 5, what is the changed force of attraction between them? A. 5 newtons B. 50 newtons C.

Which scenario do robes an interaction between two different spheres

You have a chemical sealed in a glass container filled with air. The glass container has a mass of 200.0 grams and the chemical has a mass of 500 grams. The total mass of the set-up is 700 grams.

The law of conservation of mass states that if matter is destroyed on one side of the equation, other matter must be created on the other side. true false

Rachel is making cookies. She pours 1/2 cup of oil into a bowl, followed by 1 cup of water. The oil rises to the surface of the bowl. Why?

Two particles collide, one of which was initially moving and the other initially at rest. Is it possible for both particles to be at rest after the collision?

What is the first thing to check when a refrigerator stops working?

You push down on the car to provide more friction for the tires allowing the cars tires to propel it forward 5 meters. How much work do you do?

Minerals that form from magma process will tend to form?