POWER UP

POWER UP

This is for a grade.

Multiple Choice

Which of the following is a compound?

• Oxygen

• H₂O

Multiple Choice

Salt water boils and the water completely evaporates, salt (NaCl) is left in the bottom of the beaker. Which of the following is left in the beaker?

• Compound

• Element

Multiple Choice

Carbon is considered an element while carbon dioxide is considered a compound. This is because carbon dioxide is –

• a gas at room temperature.

• made of two different elements.

• given off by green plants.

Multiple Choice

Two or more different elements chemically combine to form compounds.

• Agree

• Disagree

Multiple Choice

Both elements and compounds are pure substances.

• Agree

• Disagree

Multiple Choice

Which best describes a compound?

• found on the periodic table

• made from two or more elements

• only 10 in the world

Multiple Choice

Compounds are different than elements because compounds are -

• A combination of two or more elements.

• not able to be broken down into parts

• made from the same type of atoms

• a pure substance, elements are not

Multiple Choice

abundant

• none

• very low amount; uncommon and hard to find

• found in a large amount; common

• exhibiting a full spectrum of color

Multiple Choice

What is the percentage of nitrogen in Earth's atmosphere?

• 1%

• 21%

• 78%

• 90%

Multiple Choice

What is the percentage of oxygen in Earth's atmosphere?

• 1%

• 21%

• 78%

• 90%

Multiple Choice

Which gas in our atmosphere is most abundant?

• Argon

• Oxygen

• Nitrogen

• Carbon Dioxide

Multiple Choice

Which of the following could indicate that a chemical change took place?

• Change in color

• Production of Energy

• Formation of Gas

• All are correct

Multiple Choice

Sugar dissolves in warm water

• Physical change

• Chemical Change

Multiple Choice

An explosion occurs ...

• Chemical Change

• Physical Change

Multiple Choice

Bubbles form (new substance) when two or more substances are combined ...

• Chemical Change

• Physical Change

Multiple Choice

Is salt dissolving (no new substance) in water a physical or chemical change?

• Physical

• Chemical

Multiple Choice

Is a rusting bicycle a chemical or physical change? Rust is a new substance.

• chemcial

• physical

Multiple Choice

An object undergoes a chemical change when it is

• shape, form, state of matter

• melting, odor, size, dissolves

• burning, rusting

Multiple Choice

Blue liquid and yellow liquid mixed to make a green liquid (dissolves but no new substance is formed)

• Chemical Change

• Physical Change

Multiple Choice

Non-metals are good conductors of heat and electricity.

• TRUE

• FALSE

Multiple Choice

All of the following would classify an element as a metal except?

• Dull

• Luster

• Malleable

• Hard

Multiple Choice

Iron is a good conductor, malleable and magnetic. What type of element is Iron?

• Metal

• Nonmetal

• Metalloid

• Pretty

Multiple Choice

Some characteristics of a metal are that it is malleable and ductile.

• TRUE

• FALSE

Multiple Choice

Which of the following is a good conductor of heat?

• Metal

• Nonmetal

• Metalloid

Multiple Choice

Which of these grouping of elements could have the characteristic of brittle?

• Metal

• Nonmetal

Multiple Choice

Which of these is a property of metals?

• It's malleable

• It can't conduct electricity

• They are used in food

• It's very brittle

Multiple Choice

Which elements are to the LEFT of the zigzag?

• metals

• nonmetals

• metalloids

Multiple Choice

Sulfur is considered:

• malleable

• brittle

• ductile

• a good conductor

Multiple Choice

Which elements are to the right of the zig zag?

• metals

• nonmetals

• metalloids

Multiple Choice

At which point is kinetic energy greatest (k-lo)?

• W

• X

• Y

• Z

Multiple Choice

At which point is kinetic energy lowest?

• W

• X

• Y

• Z

Multiple Choice

When a pendulum swings, at which point is kinetic energy highest?

• 1

• 2

• 3

• 4

Multiple Choice

At which point is potential energy greatest?

• W

• X

• Y

• Z

Multiple Choice

At which point is potential energy at its least?

• W

• X

• Y

• Z

Multiple Choice

You are baking a cake. When you open the oven, a gush of warm air flows out toward your face. This warm air is due to???

• conduction

• convection

• radiation

Multiple Choice

"Lava lamps" contain colored liquids. These liquids form globs that rise to the top due to

• conduction

• convection

• radiation

Multiple Choice

What is another name for thermal energy?

• thermal equilibrium

• heat transfer

• heat energy

Multiple Choice

A ceiling fan forcing the warm air downward is

• Conduction

• Convection

• Radiation

Multiple Choice

The transfer of heat by currents through liquids of GASES is called

• Perspiration

• Radiation

• Conduction

• Convection

Multiple Choice

The warm air from this heater creates a current when the warm air rises and the cold air sinks.

• conduction
• convection
• radiation

Multiple Choice

Warm air rises and the cool air sinks.

• conduction
• convection
• radiation

Multiple Choice

How does heat move?

• from a warmer to a cooler object

• from a cooler to a warmer object

• toward a hot object

• away from a cold object