Biology Quiz--scientific Methods, Matter, Energy, And Cells

1. Which statement best compares elements and compounds?

There are more types of elements than there are compounds.

They are both different kinds of particles.

Elements are never composed of molecules, compounds always are.

Elements are composed on only one kind of atom; compounds are composed of two or more kinds of atoms.

Water is an example of an element; carbon dioxide is an example of a compound.

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2. Which of the following represents qualitative data?

Time in seconds

Color of a pH indicator strip

Mass in grams

Volume in cubic centimeters

Temperature (degrees C)

3. Which of the following is an example of a source of chemical energy?

A granola bar

A loud sound

Red light

A uranium atoms

4. Which of the following is one of the four most common elements in living organisms on Earth?

Iron

Magnesium

Nitrogen

Helium

Potassium

Phosphorus

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