If you heat a liquid, temperature rises and particles begin to ____________ ________________.
What is move faster.
100
State of matter (solid, liquid, or gas) is a _____________ property
What is physical.
100
Flammability is a ___________ property.
What is chemical
100
Name of the force that opposes gravity in a fluid.
What is buoyant force / buoyancy.
100
The resistance of a liquid to flow.
What is viscosity.
200
Which process is occurring when molecules in a solid begin to slide past each other and move more freely?
What is melting. (Solid becoming a liquid).
200
Appearance, texture, color, and density are all....
What is physical properties.
200
Rusting of iron, paper burning, and roasting marshmallows are _____________ _____________.
What is chemical changes.
200
Which property indicates that it will sink or float in water? Units are in g/ml.
What is density.
200
A solid changing directly to a gas.
What is sublimation.
300
When compared to a solid, gas molecules move ______________ and they are ____________ apart.
What is faster, farther.
300
You have two solid samples of steel. Which property do the substances most likely have in common?
What is density.
300
Physical property that determines whether or not a substance can conduct electricity through a wire.
What is conductivity.
300
A soda can has a mass of 50 grams. When the can is crushed, the mass of the can is
What is the same. (50 g).
300
A broken glass is an example of a ____________ ____________. Explain how you know this.
What is physical change. It is still the SAME SUBSTANCE, it just physically changed in form.
400
"Particles are far apart from each other" Which state of matter is this a characteristic of?
What is a gas.
400
What does combustible mean? Is it a chemical or physical property?
What is explosive. Chemical property.
400
identify which of these are describing a chemical and physical properties?
1. Substance dissolves in water.
2. Energy is released when a substance reacts with a gas.
3. A gas is produced.
4. The substance is white.
5. The substance's melting point is 100°C.
What is
1. Physical
2. Chemical
3. Chemical
4. Physical
5. Physical
400
A group of students measured 200 ml of water. They heated the beaker and observed the formation of bubbles when water boiled. What happened to the matter inside the water because of the physical change occurring?
What is it was conserved when it changed state.
400
Name for something that can speed up a chemical reaction.
What is a catalyst.
500
Explain how a gas moves in a container to fill the volume. If you have a gas with a mass of .0005g and a container that is 50ml, what is the volume of the gas?
What is it expands / spreads apart to fill the entire container.
50ml - Gases expand the full amount of the container.
500
List the evidence for a chemical change. Need at least four to earn the points!
What is bubbling, fizzing, release of a gas, change in color, formation of a precipitate.
500
Name six physical properties and four chemical.
What is color, texture, size, shape, smell, malleability, etc.
Flammability, Combustibility, Reactivity, Acdidity
500
An object sinks in water. Is it more or less dense than the water its in? Calculate the density of the object if it was a mass of 500g and a volume of 25ml. Give correct units.
What is MORE dense than the water.
20 g/ml.
500
Give a definition for what malleability and conductivity is.
What is ability to bend / form into a thin sheet, ability to be conduct energy / electricity.