Science and Math

What's the Matter?

100

Define matter.

Anything that has mass and takes up space

200

What is the smallest particle of living and non living things?

Atom

300

State 2 facts about an atom and an element?

An atom is the smallest particle of an element and makes up all matter.

An element is made of one or more atoms of the same matter.

400

What determines the phase or state of matter?

Heat/temperature

500

What is the difference between dissolving a substance and the solubility of a substance?

Dissolve means a substance breaks apart in a liquid.

Solubility is how much of a substance will dissolve in a liquid.

Physical or Chemical

100

Molecules move slowest in 

Solid

Liquid 

Gas

solid

200

Gold has a very high melting Point.  Is this a physical or chemical property?   Why?

physical..  It's still gold

300

Boiling point depends on?

a. temperature

b. air pressure

c. type of bonds between atoms

d. all of these

d.  all of these

400

Density is the ? and the ? of matter.  What is the equation to find density?

Mass; volume         D=M/V

500

Name 5 physical properties then 3 physical properties that change when the substance is decreased or increased.

Physical = color; bp; mp; volume; wt.; shape; mass; size; state; smell

Weight; Volume; mass

 

It's Just a Phase

100

What is the equation to find density? 

d=m/v

200

True or False:   Melting point is determined by the amount of energy given to a molecule or compound to create a phase change?

True   the amount of energy needed to break bonds between atoms of molecule or compound causes the substance to melt.

300

How do molecules in each a solid, liquid and gas behave?

Which has the most energy?

Solid = particles move back and forth, but are in a fixed position.  Volume is maintained.

Liquid = Volume is constant; particles slide past one another

Gas = Heat causes bonds to be broken between particles in a liquid; no specific shape or volume

Gas particles have the most energy

400

What are two categories of matter?

explain the difference

A pure substance is made up of the same atoms

A compound is made of the same molecules

500

What is the difference between a compound and molecule?

Give an example of each

A molecule can contain multiple different or like elements bonded together; a compound is a type of molecule, but has two or more different elements.

Ex.  O2 is a molecule not a compound 

H20 is a molecule and a compound

Ms Lori Math :o

100

Part A: Find the perimeter of a square that has one side that is 7.9 cm on one side and 8.6 cm on another

Part B: Find the area

33 cm

67.94 cm²

200

question 2

42 cm

300

question 3

66 cm²

400

Question 4

30 in²

500

Question 5

36 in

More Math yippee!

100

Triangles use squares and look like their relatives?

Question 1:  Does the Pythagorean Theorem work with all triangles?  If not, when can you use it and what is it?

The Pythagorean Theorem only works for right triangles (triangles with a right angle).  It is the relationship of the sides of the right triangle.   a²  +  b²  =  c² where a and b are the lengths of the legs (sides that make up the right angle) and c is the hypotenuse (side opposite the right angle – the longest side.)

200

question 2

C^{2 = 41}

300

question 3

 ?^{2 =} 300

400

question 4

x = 14

y = 24

500

question 5

40.375