Safety First!
Lab Equipment
Crazy Conversions
Scientific Method
Glorious Graphs
100
If your lab partner’s clothes catch on fire, what is the first thing you should do?
Tell the teacher!
100
Used to grind solid materials into a powder. What is it called?
Mortar and Pestle
100
Convert 23 cm to m.
0.23 m
100
What is the dependent variable?
What is being measured. The responding variable.
100
This type of graph is used for showing percentages.
Pie Graph
200
What is the best safety equipment for helping a person who is on fire?
Fire Blanket
200
Used to transfer liquids from large to small containers. What is it called?
Funnel
200
Convert 3,600,000 mm to km.
3.6 km
200
Factors that stay the same in an experiment so that the results are reliable are called…
constants
200
According to the graph, at what temperature does 300 grams of sugar dissolve in water?
60 oC
300
What word is used to describe how to appropriately smell unknown substances in lab? Spell it!
Waft
300
Best glassware to measure precise amounts of liquid is called?
Graduated cylinder
300
Place 150,000,000 into scientific notation
1.5 x 108
300
A rule or principle that describes (but does not explain) how something happens in nature is a…
Law
300
The best graph to show quantitative vs. quantitative data
Line graph
400
List 3 things you should wear to protect yourself from chemicals.
1. Safety googles or glasses
2. Apron
3. Closed Toed Shoes
4. Long Pants
400
What two objects are used to heat substances in lab?
Hot Plate and Bunsen Burner
400
Convert 75°F to °C
(5/9)(.^oF - 32)
23.9 oC
400
Explain the difference between precise measurements and accurate measurements.
Precise measurements are close to each other (consistent) and accurate measurements are close to some target/accepted value (correct)
400
List 3 things every line graph must have.
X-axis label
Y-axis label
Title above graph
500
What specific precaution is necessary for heating test tubes?
Tilt the opening of the test tube away from you and everyone else.
500
The curve that forms in liquids in graduated cylinders is called?
Meniscus
500
Convert 71,000 mL to gallons using the following conversion factors:
1 cup = 236 mL
2 cups = 1 pint
2 pints = 1 quart
4 quarts = 1 gallon
18.8 gallons
500
A team of scientists want to test if watching commercials makes kids eat more snacks when watching TV. They gather two groups of elementary school students. The first group watches 2 hours of TV with no food commercials. The second group watches 2 hours of TV with food commercials every 15 minutes. After the scientists record how many goldfish the students ate during the time period.
List the independent variable (IV) and dependent variables (DV).
IV = whether or not kids watch food commercials
DV = amount of goldfish eaten
500
What axis does the dependent variable go on?
Y-axis
600
What do we use for whole body chemical spills?
safety shower
600
Best glassware to heat in is called?
Erlenmeyer flask
or
Flat bottom flask
600
Convert 0 Kelvin to degrees Celsius.
K = .^oC + 273
-273 oC
600
A team of scientists want to test if watching commercials makes kids eat more snacks when watching TV. They gather two groups of elementary school students. The first group watches 2 hours of TV with no food commercials. The second group watches 2 hours of TV with food commercials every 15 minutes. After the scientists record how many goldfish the students ate during the time period.
List the control group and experimental group.
Control group = group without food commercials
Experimental group = group with food commercials
600
What axis does the independent variable go on?
X-axis
700
What does P.A.S.S. stand for?
Pull, Aim, Squeeze, and Sweep
Refers to how to use a fire extinguisher
700
Used to hold container you are heating over a Bunsen burner. There are 3 pieces to this answer.
Ring stand, iron ring, and wire mesh (gauze)
700
Convert 360 Kelvin to °F.
K = .^oC + 273
.^oF = (9/5)(.^oC) + 32
188.6 oF
700
A team of scientists want to test if watching commercials makes kids eat more snacks when watching TV. They gather two groups of elementary school students. The first group watches 2 hours of TV with no food commercials. The second group watches 2 hours of TV with food commercials every 15 minutes. After the scientists record how many goldfish the students ate during the time period.
Give one constant for this experiment.
Kids in same grade
All girls or all boys
700
What are the 4 different types of graphs we use in science?
Pie graph, Bar graph, Line graph, and Scatter graph