Denisty
What is the formula for density?
D = M/V
Density is Mass divided by Volume
What is the symbol for the element Carbon?
C
A sticky note torn in half is an example of what type of change?
Physical
The Periodic Table is organized horizontally by...
Period
What was the first lab we did?
Ink Lab
A fun-sized Snickers bar has a mass of 10 grams and a volume of 2 cm3. What is it's density?
5
10/2
Au is the symbol for which element?
Gold
Melting an ice-cube is an example of a ___________ change
Physical
What category of elements share properties with both metals and nonmetals?
Metalloids
What is the name of Mrs. Bird's dog?
Ginger
A Butterfinger has a volume of 20 cm3 and a mass of 40 g. What is it's density?
2
40/20
Is Iodine a metal, nonmetal, or metalloid?
Nonmetal
What do all chemical changes have in common?
Something new is formed
A substance that cannot be broken down any further is a(n)...
Element
What class period is this?
(answers will vary)
You get a full-size Hershey bar from the house next door. If it has a volume of 4 cm3, a mass of 16g, and a cocoa content of 60%. You have to share it with your sister. What is the density of your half of the candy bar?
4
16/4
H3PO4 is an example of a(n)...
Compound
Baking a cake is an example of what type of change?
Chemical
What are the three states of matter?
Solid
Liquid
Gas
What unit do we have next?
Earth
You have 100 mL of water in a graduated cylinder. You drop in a pumpkin with a mass of 50 g, and the water rises to 125 mL. What is the density of the pumpkin?
Density: 2 (50/25)
Volume: 25 mL
If a substance is dully reflective, crumbles easily, and does not conduct electricity, it is most likely a metal, a nonmetal, or a metalloid?
A nonmetal
Which of the following shows that a chemical change took place?
A. A liquid turns to a solid
B. A sample of metal melts
C. Bubbles and fizzing result when two liquids are mixed
D. A solid dissolves in a liquid
C - bubbles/fizzing
An object has a mass of 15 g and a volume of 3 cm3. If water has a density of 1, will the object sink or float?
Sink!
Density: 15/3 = 5
What is Mrs. Bird's favorite type of candy?
A. Dark chocolate
B. Twizzlers
C. 3 Musketeers
D. Milky Way
B. Twizzlers