Singapore American School

Mrs. HillGrade 6 Science

A: B:magic physical change

When matter interacts to produce a new substance it is called -

C: D:chemical reaction boiling

c. chemical reaction

A: B:endothermic exothermic

A chemical reaction in which heat is given off

C: D:boiling evaportation

b. exothermic

A: B:reactants gases

The new substances that result from a chemical reaction are called -

C: D:products compounds

c. products

A: B:a physical change difficult to make happen

Any change that results in the formation of a newsubstance and can not usually or easily be reversed is -

C: D:a rapid change a chemical change

d. a chemical change

A: B:production of a solid a color change has occurred

Effervescence means

C: D:production of a gas production of an odor

c. production of a gas

A: B:physical property a measurable quantity

Any characteristic that can be observed by your senses is

C: D:a chemical property determined by atomic mass

a. a physical property

A: B:an element an equation

A substance that can be broken down into simpler parts by a chemical change is

C: D:highly reactive a compound

d. a compound

A: B:a molecule an element

A substance that can not be broken down intoa simpler substance is

C: D:a compound inert

b. an element

A: B:formula symbol

Chemical shorthand for writing the elementscontained in a compound

C: D:equation reaction

a. formula

A: B:H Fe

Choose which of the following is a compound

C: D:CuSO4 Mg

c. CuSO4

A: B:a white powder a precipitate

A solid that may form when a reaction betweentwo liquids occurs

C: D:a reactant effervescence

b. a precipitate

A: B:dangerous exothermic

A chemical reaction in which heat istaken in or absorbed is

C: D:very common endothermic

d. endothermic

A: B:a atom a molecule

The smallest piece of a compound that still hasthe properties of that compound is

C: D:one gram equal to the number of protons

b. a molecule

A: B:immiscible the products

Chemicals that take part in a chemical reaction, the beginning chemicals are

C: D:the reactants liquids and gases

c. the reactants

A: B:1 2

How many oxygen atoms are in the compound CuSO4

C: D:3 4

d. 4

A: B:4 6

How many atoms are there all together in the compound CuSO4

C: D:5 7

c. 61 copper (Cu)1 Sulfur (S)

4 Oxygen (O)

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