Mixed review 8th grade

If we double volume of a substance while keeping the mass the same, its density

Sugar (C6H12O6) is an example of a(n)

The combination of all forces acting on an object is called the

A pail of garbage is an example of a(n)

What factors affect an object's potential energy?

Combination of two or more substances that can be separated by mechanical means

Which of the following is the smallest part of an element?

This type of chemical reaction gives off energy into the surrounding environment

Air is an example of a(n)

Why would it be more important to know the velocity of a hurricane instead of its speed

What is the average speed of an train that covers 50 m in 25 min?

This state of matter has no definite shape or volume. Atoms move around freely

Which square is more dense?

If the image is showing equal volumes of the liquid, which one is less dense?

Which fruit is more dense?

In this state of matter particles are vibrating in place.

Substance that is made by the chemical combination of two or more elements.

This state of matter takes the shape of its container. Atoms slide past one another.

Elements in the Periodic Table are arranged according to their

What is the purest and most simple form of all matter?