States of Matter
Phase Change
Properties of Matter
Matter in the real world
Atoms & Elements
100
What are the three main states of matter?
What is Solid, liquid, and gas.
100
What happens to molecules in a substance when heat is added?
What is move faster.
100
You stir hot cocoa mix into warm milk until it disappears. The cocoa mix is the ______,
What is the solute
100
Scientists often use this equation to calculate whether objects will float or sink: mass ÷ volume. What property does it find?
What is density
100
All matter is made up of these tiny particles.
What are atoms
200
In which state of matter do atoms move freely and are widely spaced?
What is Gas.
200
What is it called when a liquid turns into a gas?
What is evaporation
200
You pour water into a measuring cup and see how many milliliters it takes up. What are you measuring?
What is volume
200
Huge ships float even though they are made of steel. Compared to water, is their overall density higher or lower?
What is lower
200
This is the simplest form of matter that cannot be broken down further.
What is an element
300
What state of matter has a definite volume but not a definite shape?
What is Liquid.
300
Molecules are changing from a _________ to a ___________ in the picture.
What is Liquid to a gas
300
A scientist records that gold melts at 1,064°C no matter how big or small the sample is. What type of property is being recorded.
What are intrinsic properties
300
A car rusting over time is an example of this type of change.
What is a chemical change
300
Scientists arrange elements into this table based on their properties and atomic numbers.
What is the periodic table
400
What is the term for a change from a solid to a liquid?
What is Melting
400
Dry Ice or CO2 is an example of?
What is Sublimation
400
A mixture where the parts are evenly distributed.
What is a solution (Homogeneous mixture)
400
Aluminum foil bends easily without breaking. This property is called…
What is malleability
400
Two oxygen atoms bond together to form O₂. What type of pure substance is this?
What is a molecule
500
Plasma is a state of matter found in this natural source.
What is the sun (or Stars)
500
Heat is removed during this phase change from liquid to solid.
What is freezing
500
Solubility is independent of this factor.
What is the amount of matter present?
500
In an experiment, you measure the mass of a liquid as 300 grams and its volume as 150 mL. What is its density?
Density = 300 g / 150 mL = 2 g/mL
500
This part of an atom contains protons and neutrons and is found at the center of the atom.
What is the nucleus