Scientific Method
In the Lab
Variables
Lab Safety Rules
Lab Scenarios
100
What is the first thing that a scientist must do?
Make an observation or ask a question.
100
When measuring length, what is the base unit?
Meter
100
What is a dependent variable?
The variable that the scientist is measuring. It depends on the independent variable.
100
If an accident occurs, what should you do immediately?
Tell a teacher
100
A student who is wearing a loose t-shirt is heating a solution over a Bunsen burner. As the student leans over the burner to reach for something, their shirt catches fire.What did they do wrong?
Loose clothing
200
Why do scientists use the scientific method?
To keep experimentation consistent throughout the community
200
When measuring mass, what is the base unit?
Grams
200
What is an independent variable?
The variable that the scientist is able to manipulate to test the outcome.
200
What will happen if you break any of the lab safety rules?
DAILY DOUBLE
You will get a zero and/or will not do the lab (or future labs)
200
A student is excitedly telling their friend their plans for the weekend, and is not listening to the teacher’s lab instructions. During the lab, the student mixes two of the wrong chemicals together and an uncontrolled chemical reaction occurs. What did they do wrong?
Not following directions
300
What kind of statement should your hypothesis be?
"If..., then..."
300
What method do scientists use to find the volume of an irregularly shaped solid object?
Water displacement. (An explanation is an acceptable answer.)
300
Nick wants to see how high ice cubes will float in different temperatures of water. What are the independent and dependent variables?
Independent: Different temperatures
Dependent: How high the ice floats
300
What is wrong?
Consuming lab materials.
300
A student is in the middle of a science experiment where they have to boil a solution for a long time. When the student gets bored and wanders over to talk with their friends, a sweatshirt they left on the desk near the hot plate catches fire. What did they do wrong?
DAILY DOUBLE
Lab space not cleaned
400
Which of the following is NOT a testable question?
1. Does a carrot or onion grow faster?
2. Which color is better, red or green?
3. What will help a plant grow taller, fertilizer or nothing?
4. Which will freeze faster, spring water or sparkling water?
2
400
"Jessica is conducting an experiment to identify how different types of fertilizer will impact the height of her flowers."
What is the dependent variable?
DAILY DOUBLE
Height of flowers.
400
If I put more soap in my bathtub then more bubbles will form.
What are the dependent and independent variables?
Independent: Amount of soap
Dependent: Amount of bubbles
400
What is wrong?
Lab space is not clean.
400
A student is adding small drops of acid to a solution. They are leaning in closely to count how many drops of acid they are adding. The acid splashes and gets in their eyes.
1. What did they do wrong?
2. What should they do next?
Not wearing goggles
500
List the steps of the scientific method in order.
1. Question/Observation
2. Research
3. Hypothesis
4. Experiment
5. Data Analysis
6. Share Results
500
"Jessica is conducting an experiment to identify how different types of fertilizer will impact the height of her flowers."
What is the independent variable?
Type of fertilizer.
500
"A scientist conducted an experiment to determine how the amount of salt in a body of water affects the plants that can live in the water."
Identify the independent and dependent variables
Independent: Amount of salt
Dependent: Plant life
500
List 3 things you need to do BEFORE a lab to ensure that you are safe and ready.
1. Read the procedure
2. Clear your workspace
3. Put on safety equipment
500
Identify everything that is wrong:
During a chemistry experiment, a student carefully pours and unknown solution from a test tube into a beaker. Another student sneaks up behind them and surprises their friend. The student accidentally drops the beaker on the floor, and pieces of glass land on their sandaled feet.
1. student 1 is not following directions
2. student 2 is fooling around
3. student 1 is wearing open-toed shoes