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Molecular Structure
States of Matter
Chemical Reactions
Vocabulary
Physical or Chemical Change?
100

Proton = __________ charge

Neutron = ____________ charge

Electron = ____________ charge

1. Positive

2. Neutral

3. Negative

100

What is happening when a liquid becomes a solid?

Freezing

100

What is a chemical reaction?

When two or more elements mix together to form a completely new substance.

100

What does Chemistry mean?

The study of matter 

100

Ice Melting

Physical Change

200

What is an atom?

The smallest part of an element that can still be classified as that element

200

What type of energy needs to be added to a solid to turn it into a liquid?

Thermal/Heat

200

What are 4 ways to know a chemical reaction has occured?

Change in color, change in temp, formation of solid, formation of gas

200

What does Atoms mean?

The smallest part of matter 
200

Cooking an Egg

Chemical Change

300

What is a compound?

When 2 or molecules are chemically joined together.

300

Give 2 examples of condensation

Water droplets, dew on grass, etc. 

300

When mixing baking soda and vinegar, how can we tell there is going to be a chemical reaction?

The fizzing and bubbling when the 2 reactants mix. 

300

What does Freezing mean?

Molecules of a liquid slow down to condense into a fixed position as a solid

300

Ripping Paper

Physical Reaction

400

How does the Atomic Number tell us how many electrons an element has? 

The atomic number and the number of electrons are the exact same. 

400

What is happening when a liquid becomes a gas?

Evaporation

400

Reactant - 

Product - 

Reactant - the elements before mixing them together 

Product - the new substance made after the mixture. 

400

What does Elements mean?

Substance that cannot be broken down into simpler substances

400

Oobleck

Physical Change

500

A learner says hydrogen gas (H2) and water (H2O) are the same because they both contain hydrogen (H). Are they correct?

No. H2 is only Hydrogen, while H2O is a mixture of Hydrogen and Oxygen. These have different properties and have act differently in chemical reactions. 

500
Distance between particles:

Solid:

Liquid:

Gas:

Solid: touching

Liquid: close together

Gas: far apart

500

A learner mixes two substances and observes: Temperature increase and color change. Using the evidence, construct a claim about if a chemical reaction occurred.  

The increase in temperature and the color change are 2 signs of a chemical reaction.
500

What does Phase Chance mean?

Processes by which matter change from one state to another
500

Baking a Cake

Chemical Reaction