Chapter 8-Matter And Its Uses Question Preview (ID: 8225)

a) It is made of wood.

b) Children younger than 3 cannot ride it.

c) It was made in the USA.

d) It is blue.

a) The central core of an atom.

b) The measure of how compact and object is.

c) A useful representation that aids in studying a subject further.

d) The part of the nucleus that has a positive charge.

a) It can rust.

b) It weighs 4000 pounds.

c) It is blue.

d) It is made of metal.

a) Cutting up paper.

b) The elements listed on the periodic table.

c) The rearrangement of atoms within molecules to make new molecules with different properties.

d) Stirring something together.

a) The application of knowledge to accomplish a goal.

b) The combination of two atoms.

c) The occurence of a chemical and a physical change.

d) A scientist and his laboratory.

a) an element

b) a chemical reaction

c) an electron

d) a compound

a) A chemical reaction involves chemicals.

b) A chemical reaction can be reversed.

c) A chemical reaction results in the formation of a new substance.

d) A physical reaction makes something move.

a) The wood absorbs the water.

b) The brick weighs more than the wood.

c) The wood is more dense than the brick.

d) The wood is less dense than the brick.

a) People can choose to use a computer for good or for evil.

b) Matter that is more dense will float.

c) People can use matter every day.

d) People can choose what color they want.

a) chemical reaction

b) protons

c) density

d) atom