Honors Chemistry Midterm Review

Identify the activity that belongs in the field of chemistry.

• developing medicines

• analysis of a compound

• production of a new plastic

• all of the above

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-5

NGSS.MS-PS1-2

Which of these chemicals is definitely inorganic?

• one that is made of carbon and hydrogen

• one that is made of nitrogen and carbon

• one that is made of nitrogen and hydrogen

• one that is made of carbon and oxygen

Which of the following is not a step for solving a numeric word problem?

• calculate

• conclude

• analyze

• evaluate

Identify the false statement.

• Chemistry plays an important role in efforts to increase the world's food supply and to protect crops.

• Biodiesel is a fossil fuel.

• Potato plants with a jellyfish gene will glow when they need to be watered.

• Chemists are working to develop more pest-resistant and disease-resistant plants.

Tags

NGSS.MS-LS1-5

NGSS.MS-LS4-5

A hypothesis is

• an observation recorded from an experiment.

• a proposed explanation for what is observed.

• a summary of the results of many experiments.

• a well-tested explanation for many observations.

Tags

NGSS.MS-LS1-5

Which of the following is not a part of the scientific method?

• experimenting

• Observing

• proving

• hypothesizing

Identify the false statement.

• A scientific law fully explains a set of observations.

• The scientific method is a logical, systematic approach to the solution of a problem.

• For the results of an experiment to be accepted, the experiment must produce the same results no matter how many times it is repeated.

Tags

NGSS.MS-PS1-2

Which of these steps of the scientific method involves stating a relationship but not proposing an explanation for the relationship?

• observation

• scientific law

• theory

• Hypothesis

All of the following are general characteristics of a substance in the liquid state except

• definite volume.

• able to flow.

• not easily compressed.

• definite shape.

In the chemical reaction: iron plus oxygen yields iron oxide,

• iron oxide is a reactant.

• iron is a reactant.

• oxygen is a product.

• iron is a product.

Tags

NGSS.MS-PS1-5

NGSS.MS-PS1-2