States of Matter
Mixtures & Substances
Physical vs. Chemical Properties
Physical vs. Chemical Changes
Atoms Basics
100
Which state has a definite shape and volume?
Solid
100
A mixture that is evenly mixed and hard to separate is called?
Homogeneous mixture
100
What is a physical property?
A property observed without changing the substance’s identity
100
Ice melting is what type of change?
Physical change
100
What are the three subatomic particles?
Protons, neutrons, electrons
200
Which state has particles that slide past each other but stay close together?
Liquid
200
A mixture that is unevenly mixed and easy to see the parts is called?
Heterogeneous mixture
200
What is a chemical property?
A property that describes a substance’s ability to undergo a chemical change
200
Burning wood is what type of change?
Chemical change
200
Which particle has a positive charge?
Proton
300
Which state has particles with the most energy?
Gas
300
Salt water is an example of what type of mixture?
Homogeneous mixture
300
Is color a physical or chemical property?
Physical property
300
Is cutting paper a physical or chemical change?
Physical change
300
Which particle is neutral?
Neutron
400
What state of matter takes both the shape and volume of its container?
Gas
400
What is the difference between an element and a compound?
Element = one kind of atom (He, O3, Fe2); Compound = two or more different atoms chemically bonded (H2O, CO2, and FeO2)
400
Is flammability a physical or chemical property?
Chemical property
400
Name 2 signs that a chemical change has occurred.
Bubbles, color change, energy released, new substance formed (any 2)
400
Which particle is negatively charged?
Electron
500
Draw and label how particles are arranged in solids, liquids, and gases.
500
Give an example of each: element, compound, homogeneous mixture, and heterogeneous mixture.
Element = Oxygen (O2); Compound = Water (H2O); Homogeneous = Salt water; Heterogeneous = Pizza
500
Name two physical properties and two chemical properties of matter.
Physical = color, density; Chemical = flammability, ability to rust
500
Explain the difference between a physical and a chemical change using examples.
Physical = no new substance (melting ice); Chemical = new substance formed (rusting iron)
500
Which subatomic particles are found in the nucleus?
Protons and neutrons