Matter and the Environment 3.1

Multiple Choice

What causes the plankton blooms and hypoxia in the Gulf of Mexico?

• nutrient-rich runoff

• overfishing

• depth of water

• salinity content

Match

Match the following

• nucleus

• electrons

• element

• atoms

contains protons and neutrons

move around the nucleus

substance that cannot be broken down into simpler substances

basic unit of matter

• contains protons and neutrons

• move around the nucleus

• substance that cannot be broken down into simpler substances

• basic unit of matter

Multiple Choice

Which of the following is positively charged and is located in the nucleus?

• electron

• neutron

• proton

• none of the answers are correct

Match

Match the following

• covalent bonds

• ionic bond

• molecule

• compound

Electrons are shared

Electrons are transferred

two or more atoms joined by covalent bonds

substance composed of atoms of two or more different elements

• Electrons are shared

• Electrons are transferred

• two or more atoms joined by covalent bonds

• substance composed of atoms of two or more different elements

Multiple Choice

Organic compounds are covalently bonded carbon atoms.

• This is a TRUE statement

• This is a FALSE statement

Match

Match the following

• Organic compound

• Hydrocarbons

• Inorganic compounds

consists of bonded carbon atoms

contain only carbon and hydrogen

lack carbon-to-carbon bonds

• consists of bonded carbon atoms

• contain only carbon and hydrogen

• lack carbon-to-carbon bonds

Multiple Select

Mixtures can be:

(Select ALL that apply)

• solid

• liquid

• gas

• plasma

Match

Match the following

• Protein

• Nucleic Acids

• Carbohydrates

• Lipids

can be enzymes; have many functions

direct protein production

provide energy and structure

have many functions; not soluble in water

• can be enzymes; have many functions

• direct protein production

• provide energy and structure

• have many functions; not soluble in water

Multiple Choice

DNA and RNA are

• carbohydrates.

• lipids.

• nucleic acids.

• proteins.

Multiple Choice

Fats, waxes, and hormones are

• carbohydrates.

• lipids.

• nucleic acids.

• proteins.

Multiple Choice

What gives water its many unique properties?

• Covalent bonds

• Hydrogen bonds

• elemental bonds

• none of the answers are correct

Multiple Choice

Water is required for all living things for survival.

• This is a TRUE statement.

• This is a FALSE statement.

Multiple Select

The separation of water molecules into ions causes solutions to be

• acidic

• basic

• dissolve

• evaporate

• neutral

Match

Match the following

• pH of 7

• pH below 7

• pH above 7

• Base

• Acid

Neutral

acidic

basic

high concentration of OH-

high concentration of H+

• Neutral

• acidic

• basic

• high concentration of OH-

• high concentration of H+