When a substance changes from one phase to another, which of the following events occurs?

How do organisms acqire the energy they need to live?

What ratio increases when a cell divides into two smaller cells?

Your mass is 65 kg. you stand on a bathroom scale in an elevator on earth. (a) what force would the scale exert when the elevator moves up at a constant speed?

What is the only truly liquid layer of the earth? A) inner core B) outer core C) lower mantle D) Upper Mantle

Describe what occurs at a destructive boundary. Explain what folding is and give an example of a mountain region formed by folding. this is for earth science btw

When viewing a piece of art that is behind glass, one often is affected by the light that is reflected off the front of the glass (called glare), which can make it difficult to see the art clearly.

force used to lift a 25kg mass to a height of 24m in 5 sec does 2120J of work. Calculate the power.

Which statement is true about the atom? A: it contains positive electrons, uncharged protons and negative protons. B: it contains uncharged neutrons, positive electrons and negative protons.

Steel objects can become temporary magnets because they are mainly composed of which element?

How long does it takes the sun to rotate the earth?