Lab Safety
Lab Equipment
Mathematics...
Scientific Method
Extra, Extra
100
What should you do if your beaker has a crack in it, but it is not leaking?
Tell the teacher and get a new beaker
100
Used to transfer liquids from large to small containers
Funnel
100
Convert 23 cm to m.
0.23 m
100
Factors that stay the same in an experiment so that the results are reliable are called…
Constants
100
This type of graph is used for showing percentages.
Pie Graph
200
List 3 things you should wear to protect yourself from chemicals.
Safety goggles, lab apron, gloves, long pants or closed toed shoes.
200
Best piece of lab equipment to measure precise, numerical amounts of liquid
Graduated Cylinder
200
Convert 3,600,000 mm to km.
3.6 km
200
What is the dependent variable?
What is being measured
200
What is the difference between Quantitative and Qualitative data? Give an example of each.
Quantitative- numerical (75* outside)
Qualitative- descriptive (hot, humid, and sunny outside)
300
What is the best safety equipment for helping a person who is on fire?
Fire Blanket
300
Used to grind solid materials into a powder
Mortar and Pestle
300
Place 150,000,000 into scientific notation
1.5 x 10^8
300
A rule or principle that describes how something happens in nature is a…
Law
300
List 3 things every graph must have.
Title, X-Axis label and Y-Axis label, Key
400
What word is used to describe how to appropriately smell unknown substances in lab?
Waft
400
What two objects are used to heat substances in lab? (produces heat)
Hot plate and Bunsen burner
400
Convert 75°F to °C
24°C
400
Explain the difference between precise measurements and accurate measurements.
Precise measurements are consistent/specific. Closeness to each other.
Accurate measurements are correct. Closeness to the right answer.
400
Convert 360 Kelvin to °F.
188.33°F
500
What specific precaution is necessary for heating test tubes?
Tilt the mouth of the test tube away from you and your partners
500
The curve that forms in liquids in graduated cylinders.
Meniscus
500
Convert 71,000 mL to gallons.
18.8 gal
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, dependent variable, control group, and experimental group.
IV = whether or not kids watch food commercials
DV = amount of goldfish eaten
Control group = group without food commercials
Experimental group = group with food commercials
500
According to the graph, at what temperature does 300 grams of sugar dissolve in water?
60°C