Properties and tools
What property can you observe by touching something, such as whether it is rough or smooth?
Texture
What is it called when liquid water changes into water vapor and a puddle slowly disappears?
Evaporation
Which is a form of energy: texture, sound, mass, or volume?
Sound
How does light travel through open air?
In a straight line
What can produce heat because of friction: rubbing your hands, placing ice in a cup, turning off a lamp, or
looking in a mirror?
Rubbing your hands
What tool measure the temperature of water?
Thermometer
What happens when water gets cold enough?
It freezes and becomes a solid
A toy car is moving. What form of energy does it show?
Mechanical energy
What is it called when light bounces off of a mirror?
Reflection
What property can you notice without a measuring tool: mass, texture, volume, or temperature?
Texture
What tool measures the mass of an object?
A balance
What is it called when water vapor cools and forms liquid drops?
Condensation
Give an example of an object that gives off both light and heat
Candle, sun, lightbubl
A pencil looks bent in a glass of water. What is this called?
Refraction
Name a tool from this unit and explain what it measures.
Example: A thermometer measures temperature
Name two observable properties you could use to compare two rocks
Color, texture, size, or shape.
An ice cube turns into liquid water. What is this change called?
Why can rubbing your hands together make them feel warmer?
Friction between the hands produces heat
A dark surface takes in light energy instead of bouncing it back. What is this called?
Absorption
Explain condensation using the words water vapor and liquid water.
Water vapor cools and changes into liquid water drops.