Show:
Basic Matter
Phase Changes in Matter
Physical Change vs. Chemical Change
Mixtures and Solutions
Law of Conservation of Matter
100

What is the smallest particle for all of matter?

atom

100
This phase change occurs when a liquid turns into a solid.
freezing
100

Which observation indicates that a chemical change has occurred? 

A. A candle melting 

B. Sugar dissolving in water 

C. Formation of bubbles during a reaction 

D. Breaking a cookie into pieces

C. Formation of bubbles during a reaction 

100

A ______ is when two or more substances are combined but they keep their own properties.

mixture

100

TRUE OR FALSE: The law of conservation of matter states that matter cannot be created or destroyed.

True

200

What is a group of two or more atoms bonded together called?

molecule

200
This phase change occurs when a gas turns to a liquid.
condensation
200

What type of change is a broken mirror?

Physical Change

200

A ______ is a type of mixture in which the substances are not evenly distributed throughout.

heterogenous

200

A student has 50g of warm water in a container. The student takes 2g of sugar and places it in the container and seals it. How much mass (grams) does the container have?

52g

300
What state of matter has definite shape and definite volume?
solid
300

This phase change occurs when a liquid turns to a gas.

evaporation
300
Is ice melting a physical change or chemical change?

Physical Change

300

What is solubility?

Solubility is the measurement of whether something dissolves in a liquid.

300

If you dissolve sugar in water, why does the total mass of the sugar-water solution equal the mass of the water plus the mass of the sugar? 

A. Because the sugar disappears in the water 

B. Because matter cannot be created or destroyed 

C. Because sugar is lighter than water 

D. Because the sugar turns into water

B. Because matter cannot be created or destroyed 

400

What state of matter has no definite shape or volume?

gas

400

What happens to atoms when heat is added?

Atoms get farther apart and move faster.

400

True or False: Physical Changes are often just a phase change.

True

400

What does dissolve mean?

Dissolve means to break down in a liquid.

400

When water evaporates from a puddle, what happens to the atoms?

A. They disappear completely 

B. They turn into air 

C. They change into a gas form and enter the atmosphere 

D. They are destroyed by the sun's heat

C. They change into a gas form and enter the atmosphere

500

Tell me how the atoms look in a solid, liquid, and gas. Miss Till will determine if your answer is correct. If you do not answer correctly, your team will receive no points.

Solid: Atoms are tightly packed (very close together) and vibrate in place.


Liquid: Atoms are moved apart (not too close, not too far) and move/flow freely.

Gas: Atoms are very far apart and move all over the place.

500

What makes atoms move faster?

Heat (Thermal Energy)

500

What factors tell us a chemical change has occured?

If something new is created. It produces light, color change, heat, bubbles, sound, or a precipitate. You cannot easily reverse a chemical change.
500

What is the difference between solute and solvent?

Solvent is the substance that does the dissolving (the liquid). Solute is the substance that dissolves in the liquid.

500

When an ice cube melts in a sealed glass, what happens to the total mass of the container and its contents? 

A. Increases because liquid takes up more space 

B. Stays exactly the same 

C. Decreases because ice is heavier than water 

D. Changes depending on room temperature  

B. Stays exactly the same