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WorksheetsEnergy & Matter: What do I know about Matter and Heat
Total questions: 15
Worksheet time: 8mins
What is the smallest part of a chemical element that can exist?
Atom
Molecule
Proton
Electron
Which of the following is NOT a state of matter?
Solid
Liquid
Gas
Plasma
What term is used to refer to both single atoms and molecules?
Particle
Compound
Element
Solution
What happens to particles in solids, liquids, and gases when they are heated?
They move closer together
They move away from each other
They stop moving
They disappear
Which instrument is used to measure temperature?
Barometer
Thermometer
Hygrometer
Calorimeter
At what point does a solid turn into a liquid?
Boiling point
Freezing point
Melting point
Sublimation point
What is the process called when a substance changes directly from a solid to a gas?
Condensation
Sublimation
Melting
Freezing
Which of the following best describes a physical change?
The substance stays the same but changes from one physical state to another
The substance is destroyed
New substances with different properties are formed
The substance disappears
Why do solids and liquids tend to be harder to compress than gases?
Their particles are far apart
Their particles are much closer together
They have no particles
Their particles are moving very fast
What happens to the density of most substances when they are cooled?
Density decreases
Density increases
Density stays the same
Density becomes zero
According to the particle theory of matter, what happens when you increase the kinetic energy of particles by heating?
They vibrate less and come closer together
They vibrate more and spread out
They stop moving
They become larger
Which of the following is a measure of the number of particles in a substance?
Volume
Mass
Density
Temperature
What is the boiling point?
The temperature when a solid turns to a liquid
The temperature when a liquid turns to a gas
The temperature when a gas turns to a solid
The temperature when a liquid turns to a solid
How can melting and boiling points be useful?
They help identify pure substances
They change every time you measure them
They are the same for all substances
They are not useful in science
What is density?
The number of particles in a substance
The packing of particles in a given volume (mass per unit volume)
The temperature of a substance
The color of a substance
