To find the density of an object, you need the mass and the...
Volume
100
An element can be broken down into a simpler substance.
True or False.
False
100
Physical or chemical change?
boiling water
100
Which are the most abundant in the periodic table?
Metals
100
Quote a line from Star Wars? (any movie)
I'll tell you if you got one right :)
200
A block of aluminum occupies a volume of 10mL and has a mass of 40g. What is the density?
D= 4g/mL
200
If a rock on Earth has a mass of 100 grams. What is its mass on the Moon?
100 grams
200
Physical or chemical change?
adding bleach to a washer of clothes
chemical change
200
Brittle means...
breaks apart easily
200
What do we use to measure mass?
A triple beam balance
300
Mercury is poured into a graduated cylinder that holds exactly 20mL. The mercury used to fill the cylinder has a mass of 240g. What is the density?
D=12g/mL
300
What is a compound made of?
two or more elements
300
Physical or chemical change?
cutting paper
physical change
300
Malleable means...
able to bend or shape
300
What type of plate boundary would cause an earthquake?
Transform
400
A rectangular block of copper metal has a mass of 1800g. The dimensions of the block are 6cm by 2cm by 3cm. What is the density?
D=50g/cm3
400
What do we celebrate today?
Star Wars Day!
400
Which of the following would indicate the formation of a new substance?
a. a liquid turns to a solid b. sample of metal melts
c. bubbles and fizzing occur d. solid dissolves in liquid
C. bubbles and fizzing occur
400
Metals are good conductors of ______ and ______
heat and electricity
400
What is the difference between lava and magma?
Magma is still inside the Earth and lava is outside
500
A flask that weighs 300g is filled with 200mL of carbon tetrachloride. The mass of the flask and carbon tetrachloride is found to be 700g. What is the density?
D=2g/mL
500
Physical or Chemical change?
Digestion of food in our stomachs.
Chemical
500
Name 3 examples that a chemical change has occurred?