A scientist knows that a pure substance has six protons in the nucleus of each of its atoms. Which of the following can the scientist conclude?

In the electron cloud model of the atom, what does the electron cloud contain?

What particle in an atom's nucleus has no charge?

Which measurement changes when an object is taken from Earth to the moon?

A chemical change differs from a physical change because in a chemical change a substance

Which choice below best describes water vapor?

When a substances particles are moderately spread apart and can slide past each other, what state of matter is the substance.

A metalworker takes a piece of copper and shapes it by pounding it with a hammer. Which of the following best describes the property the metalworker used?

One container (A) has liquid with an object at the bottom, another (B) has the same liquid but an object is at the top. What can you determine about the density of the objects?

The amount of space an object takes up is its

A substance's melting point is the same as its

How is plasma different from gas?

In which state of matter do particles move the slowest?

Which statement describes a chemical property of an object?

Which object has the greatest density?

What physical property of matter can you measure with cubic centimeters?

When does hail form?

A volcanic eruption can change the climate by

Why do meteorologists use satellites to help them predict the weather?

If an air mass forms over a desert in the southern United States, what will its temperature and moisture be like?

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