End of Year Vocab Week 1

What is an element?

• A compound of two or more elements

• A mixture of different substances

• A pure substance that cannot be broken down into simpler substances

• A pure substance that can be broken down into simpler substances

Which of the following is an example of a compound?

• Gold (Au)

• Nitrogen (N2)

• Oxygen (O2)

• Water (H2O)

Tags

NGSS.MS-PS1-1

What defines a pure substance?

• It has a variable composition

• It is a mixture of compounds

• It is made of different elements

• It has a definite and constant composition

Which of the following is a mixture?

• Water (H2O)

• Table salt (NaCl)

• Saltwater

• Pure gold

What is an epidemic?

• A sudden increase in disease cases in a specific area

• A disease that is constantly present in a population

• A symbiotic relationship between organisms

• A disease that affects the entire world

What is a pandemic?

• A disease that is constantly present in a population

• A sudden increase in disease cases in a specific area

• A widespread outbreak of a disease affecting many countries

• A symbiotic relationship between organisms

What is mutualism?

• A relationship where both organisms benefit

• A relationship where one organism is unaffected

• A relationship where one organism benefits and the other is harmed

• A relationship where organisms compete for resources

Tags

NGSS.MS-LS2-2

What is parasitism?

• A relationship where organisms compete for resources

• A relationship where both organisms benefit

• A relationship where one organism benefits and the other is harmed

• A relationship where one organism is unaffected

What is competition in an ecosystem?

• Organisms fighting for the same limited resources

• Organisms working together for mutual benefit

• Organisms benefiting at the expense of others

• Organisms living in harmony without interaction

Tags

NGSS.MS-LS2-2

What is an index fossil?

• A fossil that is found in volcanic rocks

• A fossil that is used to determine the absolute age of rocks

• A fossil of an organism that lived for a short period and was widespread

• A fossil that is found only in one location