The transfer of heat through the movement of liquids or gases, like warm air rising and cool air sinking.
convection
What happens to light that hits an object but is not absorbed?
It bounces off the object.
A spiral-shaped part of the inner ear that helps convert sound vibrations into signals the brain can understand.
cochlea
Is this an example of a physical change or chemical change?
chemical change
What is the name of the special machine that spins and changes motion into electrical energy as a backup source of electricity?
Generator
What is E?
retina
What is C?
inner ear
What are sound waves?
vibrations that carry sound
Is this an example of a physical change or chemical change?
physical change
What is G?
anvil
What is C?
iris
What happens to the pupil when it is dim (not light)?
It becomes larger.
What shows us the pitch of a sound?
intensity
amplitude
wavelength
frequency
What does this picture show?
Magnetic field
What is A?
outer ear
What is it called when light bends?
refraction
What does this picture show?
density
What is B?
pupil
Is this an example of a physical change or chemical change?
chemical change
What is F?
stirrup
Give an example of where light comes from.
sun, streetlights, cellphones, televisions, lightbulbs ...
What is this?
An atom
What is D?
hammer
What kind of surface allows us to see a clear image/reflection?
A smooth surface
A temporary magnet produced by an electric current is called an ________________________.
electromagnet
A change where a substance turns into a completely new substance, like metal rusting,
chemical change
Materials that let electric charges (or heat) travel through them easily.
conductors
What does this picture show?
volume
When you turn on a fan or a toy car that runs on batteries, a machine inside uses electrical energy to make the blades or wheels move. This kind of machine is called an ____________________.
electric motor
What type of wave is a sound wave>
longitudinal
How much matter is packed into a certain amount of space.
density
What is a compound?
When two or more elements are combined, like 2 hydrogen + 1 oxygen (which is water)
What is energy from the sun called?
Solar energy
What does this picture show?
solution
mixture
What kind of energy does a moving object have?
Kinetic energy
What unit is used to measure sound?
decibel
What is the name for materials that allow light to pass through it?
Transparent
Light can travel through ______________.
space
What two types of energy form mechanical energy?
Potential + Kinetic
Does the volume of the water change when you put an object in the water container?
yes
The measure of how loud or how soft a sound is.
intensity
When light, sound, or heat passes through a material.
transmission
A buildup of electric charge on the surface of an object, often caused by rubbing two things together.
static electricity
A mixture where one thing dissolves completely into another.
solution
What kind of energy is being used here to make energy?
Hydroelectric energy
When two magnets push back from eachother, they ________ because the poles are the same.
repel
How does the brain use sound waves?
It changes the vibrations into signals that are sent to the brain
What happens to the pupil when it is bright?
It becomes smaller.
Is this an example of a physical change or chemical change?
chemical change
When two magnets with opposite poles meet, they ______________ eachother.
attract
What is light? Light is a form of _______________.
energy
A circuit where all components are connected in a single path, so the same current flows through each one.
series circuit
Does this soundwave have a high frequency or a low frequency?
low frequency
What is heat energy from inside the Earth called?
Geothermal energy
Magnets have north and south ____________.
poles
What does this picture show?
solid
What kind of materials scatter some light and let only part of it through?
Translucent materials
What kind of energy is in a battery?
Chemical energy
What is the center of an atom called?
The nucleus
What are the red lines showing?
amplitude
What is it called when light bounces off a smooth surface?
Reflection
A pure substance made of only one type of atom.
element
Is this an example of a physical change or chemical change?
physical change
What is the name for materials that block light and don't allow any of it to come through?
Opaque
What are the red arrows showing?
evaporation
What is I?
ear canal
The distance between two identical points on a wave, like from one peak to the next.
wavelength
What does this picture show?
boiling point
What does this picture show?
liquid
What is B?
middle ear
What does this picture show?
deposition (gas to solid)
What does this picture show?
solution
mixture
What does this picture show?
molecule (or compound)
What is the name for materials that scatters light and only allows some of it to pass through?
Translucent
What is F?
optic nerve
What kind of materials let most light pass through?
Transparent materials
What is a mixture?
when things are combined/mixed together but can be separated
What is an example of a translucent material?
Wax paper, stained glass, thick plastic
What does this picture show?
gas
Give two examples of transparent materials.
Glass, water ...
What is H?
ear drum
The transfer of heat through empty space in the form of waves, like the warmth you feel from the sun.
radiation
Why does light bend/refract? It changes _______________.
Light changes speed when it passes from air into water/glass.
What does this picture show?
element
When light, sound, or heat is taken in by a material.
absorption
How can you tell if a chemical change has occured?
there might be color change, a different smell, different temperature, there could be gas coming from it ...
What kind of circuit is this?
Series circuit
What is D?
lens
The bending of light or heat as it passes from one material to another, like when a pencil looks bent in water.
refraction
Does this soundwave have a high frequency or a low frequency?
high frequency
Anything that has mass and takes up space.
matter
Give an example of a fossil fuel.
Coal/oil/natural gas
What kind of circuit is this?
Parallel circuit
Is this an example of a physical change or chemical change?
physical change
What is a solution?
When things are mixed and cannot be separated. When one substance dissolves in another
A material that slows down or stops heat from passing through, like wood or foam.
thermal insulator
What is stored “could move” energy called?
Potential energy
The measure of how high/how low a sound is.
pitch
What is A?
cornea
What does this picture show?
sublimation (solid to gas)
How do you calculate density?
density = mass ÷ volume
A mixture where small pieces float around but don’t dissolve, often sinking to the bottom or floating on top.
suspension
What is E?
cochlea
Energy from the sun that can be used to produce heat, light, or electricity.
solar energy
What kind of materials block all light?
Opaque
How can we see objects? What happens to the light?
The light bounces off objects and enters our eyes.