II Partial - 7th B Science Quiz I

Anything that has mass and takes up space.

• matter

• mass

• atom

The forces that keep atoms together are called _____________.

• chemical bonds

• chemical force

• energetic bonds

What are the parts of an atom?

• Protons

• Neutrons

• quarks

• ribosomes

• Electrons

This is something made of one kind of atom.

Substances made up of two o more elements in exact proportions.

• elements

• mixtures

• compounds

Compounds that contain carbon and hydrogen, usually associated to living things

• inorganic

• organic

• solutions

These are some organic compounds found in living things.

• hydrochloric acid

• proteins

• water

• lipids

• carbohydrates

This is the nucleic acid the humans' cells have.

• deoxyribonucleic acid

• ribonucleic acid

• RDA

• RAN

This mixture is formed when a liquid or gas has another substance evenly spread throughout it.

• solution

• suspension

• organic compound

When an atom loses an electron during a bonding, this one becomes _______________.

• positive ion

• negative ion

• molecule

• nuetral ion