Unit 1 Review : Matter & Energy 6.5ABC

How many elements are in FeO?

• 1

• 2

• 3

Tags

NGSS.MS-PS1-1

What is the chemical symbol of magnesium?

• 12

• Mg

• Magnesium

• 24.31

Tags

NGSS.MS-PS1-1

Which of the following shows evidence of a chemical reaction/change?

• Water being boiled and giving off STEAM.

• Sugar DISSOLVING into a liquid.

• Two liquids are mixed, and a solid FORMS.

Tags

NGSS.MS-PS1-2

Which of the following observations tell you that a chemical reaction/change has occured?

• a solid becomes a liquid.

• a substance changes color.

• a solid dissolves into a liquid.

Tags

NGSS.MS-PS1-2

How are elements different from compounds?

• an element is represented by a chemical formula and a compound is represented by a chemical symbol.

• an element is represented by a chemical symbol and a compound is represented by a chemical formula.

• Both an element and a compound are represented by a chemical symbol.

Which of the following is the most abundant element in Earth's crust?

• Calcium

• Iron

• Oxygen

• Potassium

Tags

NGSS.MS-PS1-1

The oceans are primarily composed of which two elements?

• Carbon and hydrogen

• Calcium and Silicon

• Hydrogen and oxygen

• Nitrogen and phosphorus

Tags

NGSS.MS-PS1-1

Is Iron (Fe) an element or a compound?

• Element

• Compound

Tags

NGSS.MS-PS1-1

Is "a glass of milk becoming sour" physical or chemical?

• Chemical change
• Physical change

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

What characteristic defines all chemical changes?

• There is a change of state.
• Electricity is produced.
• A new material is formed.
• Bubbles are produced. 

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5