Variables
Measurement
Laboratory Equipment
Scientific Method
Lab Safety
100
Which variable is measured in the experiment? Independent or Dependent?
Dependent
100
Convert 50 km = ____ m.
50,000m
100
What is the piece of lab equipment labeled D?
Test Tube
100
Which observations describe an object’s characteristics, properties, or attributes
Qualitative
100
Sally was using a glass beaker to get water from the lab sink. Why is it important for Sally to hold the beaker with both hands and walk carefully back to her lab station?
What is the beaker could get broken and is expensive to replace? OR The water could spill causing an accident
200
Joe wants to find out how much fertilizer he needs to make his plants grow taller. What is the Dependent variable?
Height of plants
200
1600 cm = ___m
16m
200
Will Calhoun wanted to measure the mass of an egg. Which measurement tools should he use?
Digital Scale or Triple Beam Balance
200
________ are considered conclusions based on observations.
Inferences
200
As Terry was finishing her lab her loose hair got caught in a beaker leaving her with wet, sticky hair. What lab safety rule was Terry not following?
Keep your hair and other loose clothing tied back.
300
Jane wants to know which type of tire causes her bike to go faster. What is the independent variable?
Type of Tires
300
Assuming that the pointers have reached the "zero mark,"" what would be the mass of the objects according to the movable masses below?
160.6 g
300
Which piece of lab equipment is used to stir substances?
Glass Stirring Rod
300
_______ is a series of steps followed to solve problems.
Scientific Method
300
Tom saw a clear substance in one of the beakers and thought he would take a sip from it to find out what it was; he became very ill and was sent to the hospital to be treated. What lab safety rule did Tom not follow?
You should never taste or eat in the lab.
400
Which group in the experiment is not receiving the factor being tested?
Control Group
400
What is the Basic Unit for Volume?
Liters
400
________ is used to hold and move hot objects larger than a test tube.
Beaker Tong
400
What is the first step in the scientific method?
Problem
400
Cory and JD are conducting an experiment involving heating a liquid substance. They were instructed to observe the smell. What is the best way for them to do this?
Waft the fumes towards their nose?
500
The variable that is manipulated (or changed on purpose) by the experimenter is called the:
Independent
500
Determine the volume of liquid in the cylinder.
2.7 mL
500
_______ is used to heat and stir flammable substances.
Hot Plate
500
All experiments consist of ________, _________, ____________.
experimental group, control group, and constants
500
This piece of safety equipment is used to cover someone if their clothing would catch on fire during a lab.
Fire Blanket