The center of an atom is called the

The Bohr model shows that

AMU stands for?

The mass of an atom is

The smallest part of an element is

What is the basic unit of all matter?

The Periodic Table of Elements

Molecules are formed when what join together?

An element is made of

The properties of matter

CO2 is represented by

H2O is represented by

Why do scientists use models of molecules?

Signs of a chemical reaction include

Change in state (like ice to water) is

The ingredients in a chemical reaction are called

When using chemicals in a lab, you should

Which is a chemical reaction?

The substance formed in a chemical reaction is called

When observing a reaction you should look at

AB → A + B is a

Carbon dioxide and water are always produced in

A chemical equation is

A solid product formed in a reaction is called a

Chemical reactions are

When a compound breaks into two or more substances it is

A chemical change differs from a physical change because

The Law of Conservation of Mass means

When you combine two substances, the combined weight is

When two substances react chemically

The total weight of matter is conserved when substances are heated, cooled, or mixed.

Matter is conserved in a chemical reaction because

H2 + O2 → H2O (unbalanced). Does this show conservation of mass?

Energy that travels through space (light, radio, X-rays) is a

For water ripples, larger diameter relates to amplitude as

Number of waves passing a point per second is

Energy that moves through matter (like sound) is a

The material a wave travels through is called the

The lowest part of a wave is the

A wave transfers

A wavelength is the distance between two crests.

When particles move parallel to energy transport, the wave is

When energy moves perpendicular to wave travel, the wave is

Wave A has greater amplitude than Wave B. That means

Which wave has both longitudinal and transverse properties?

Sound travels fastest in

Loud sound means low amplitude.

Which names the highest point of a wave?

Which names the lowest point of a wave?

Which names the maximum displacement from the midline?

Which names the distance between consecutive crests?

Wavelength = 12 m, frequency = 10 Hz. Velocity =

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Which sound has higher amplitude: bird chirp or siren?

A wave transfers

When a wave’s energy is transferred to an object it is

Which loses more energy in absorption?

When electromagnetic waves are absorbed by an object, what happens?

When a wave bounces off a surface and changes direction it is called

A wave hits a boundary; part of it is sent back. This is called

A straw in water appears bent because of

Which rock color might help keep a house warmer?

Light shining through a window into a house is an example of

A shiny lake surface is an example of

Objects absorbing electromagnetic radiation become warmer and then

When light hits a red wagon, some energy is absorbed and

Which materials insulate from thermal energy?

To keep a thermos warm you would use

The device you design and test is called the

Why have a control in an investigation?

Modifying your device after testing is called

An ice chest

A thermos prevents which heat transfer?

Heat sent as waves through empty space is

Heat transfer requiring direct contact is

Heat circulated through a liquid or gas is

A spoon in hot soup becoming warmer is

Water boiling is due to

When air cools, molecules

Hot air will

Higher temperatures mean molecules

An insulator is a material that slows thermal transfer; example:

When hot air rises, cold air

Dark colors vs light colors and heat:

Match examples to heat transfer types (Convection, Conduction, Radiation): Metal spoon gets hot in boiling water

Match examples to heat transfer types (Convection, Conduction, Radiation): Feeling Sun's heat on your face

Match examples to heat transfer types (Convection, Conduction, Radiation): Warm air circulating from a heater

Match examples to heat transfer types (Convection, Conduction, Radiation): Ice melting because salt is added