Equipment
Problem solving
Units
Constructing Labs
Variables
100
These scissor shaped tools are used to hold or pick up beakers or flasks.
What beaker tongs?
100
To find the mass of water you have in a beaker. You must first measure the mass of this.
What is the empty beaker?
100
This unit is used to denote volume, especially with liquids.
What is a liter?
100
A prediction or guess to answer a question.
What is a hypothesis?
100
The variable scientists manipulate or control to answer a question?
What is the independent variable?
200
This device measures the mass of small objects.
What is a triple beam balance?
200
The unit used to measure the length of a leaf.
What is a cm?
200
This is smallest commonly used unit for volume. Graduated cylinders use these.
What is a mL?
200
In order to answer your question, you focus your lab around one of these.
What is an independent variable?
200
A variable that is kept the same for all trials of an experiment.
What is a control variable?
300
This wide mouthed container is used to measure, mix, and heat liquids.
What is a beaker?
300
In order to find the mass of a large glass beaker with water in it, you would...
What is measure the water in the beaker, convert the volume to grams, and add it to the mass of the beaker after weighing on a balance?
300
This unit of mass is frequently used when describing doses of medicine.
What is a mg?
300
A plant needs soil, water, and sunlight to grow. We are measuring the effect of frequency of watering on the growth of plants. These two controlled variables must stay the same.
What are the soil and amount of sunlight?
300
"The bigger they are, the harder they fall." The phrase "the harder they fall describes this variable.
What is the dependent variable?
400
This device allows the user to easily pour liquids from wide mouthed containers to narrow mouthed containers.
What is a funnel?
400
In order to transfer 1 ml of water from one container to another. You would use this tool.
What is a dropper?
400
This unit would be used to describe the length of a leaf.
What are cm?
400
Trenton wants to improve the acceleration and top speed of his car, so increase the size of the engine, adds a new transmission and add nitrogen to his fuel. This error assures that Trenton can not know what improved the performance of his car.
What are changes to too many things, or too many independent variables?
400
We want to know if group work engages students more than solo assignments. How many minutes per class the students spent idle is what kind of variable.
What is the dependent variable?
500
This screen seated on a ring clamp is used to protect beakers or flasks from direct heat.
What is wire gauze?
500
If Detention slips are always issued to students displaying disruptive behavior. The principal would do this to find the most disruptive classes in his school.
What is count the number of detention slips for each class?
500
This unit of mass is the metric unit closes to the unit of pound. Commonly used to measure body mass.
What is a kg?
500
DOUBLE POINTS Mr. Todd wants to study whether increased detention slips will control class behavior more than 1 on 1 talks. This is the first choice Mr. Todd should make to set up his study.
Choose a group to give increased detention slips and a group to more 1 on 1 talks.
500
We want to know if group work engages students more than solo assignments. Whether students worked in groups or solo is what kind of variable?
What is the independent variable?
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