Readings
Activities
Scientific Models more
Chemical Reactions
Wild Card
100

What is the definition of the melting point? 

The temperature at which a solid begins to to turn into a liquid. 

100

Define a pure substance?

A substance made with one type of material all the way through.

100

What are the 3 components of a scientific explanation

Claims, evidence, reasoning

100

What is the blue chemical solution we mixed with aluminum foil?  (full name or chemical formula)

Copper Chloride CuCl2

100

What is the essential question for this unit?

How can I make new stuff from old stuff? 

200

What determines the state of matter?

Temperature

200

What is the chemical compound for table salt?

NaCl2 (Sodium Chloride)

200

What is the best way to answer the claim?

Restate the question.

200

In this reaction, a substance changes color and a burning smell is released. (Chem? or Phys?)

chemical reaction.

200

What is malleability?

The ability to bend without breaking.

300

What is the melting point of oxygen? 

-218 degrees celsius

300

Explain in detail how would you check for hardness? 

Scratch test. The object that is scratched is the weaker substance.

300

What should you use to support your reasoning

scientific principles.

300

What chemicals do you need to make soap?

Oil/ Fat and Sodium Hydroxide

300

What is projectile motion (definition or  drawing) 


400

Draw and label the hierarchy of matter 


400

Define heterogeneous mixture? Give an example. 

A heterogeneous is any mixture that is not uniform in composition.

400

Write the 3 equations for density 

D=m/v 

M=D* V

D=m/D

400

A Chemical reaction occurs when a student puts COand H2O together. Write a possible product. 

CO2 + H2O ----> ? 

What are color change, gas is produced, smell is produced, the reaction is irreversible, temperature change (without cooling or heating,) electrical energy is produced.

400

What is the universal solvent? 

Water

500

Draw the complete phase change diagram (triangle/pyramid)


500

Complete the character density for each substance

water

aluminum

soap

fat

water: 1 g/cm3

aluminum: 2.7 g/cm3

soap: 0.84 g/cm3

fat: 0.92 g/cm3

500

In a chemical reaction what are reactants