When should you use chipped or cracked glassware in the lab?
NEVER!
100
Why do scientists use the Scientific Method?
It's an organized way for solving problems.
100
What is a hypothesis?
An educated guess or prediction about the outcome of an experiment
100
This piece of lab equipment helps make things seem larger to us when we are making observations
Magnifying glass
100
What is a variable?
Something that is changed in an experiment.
200
If you spill something in the lab, what is the first thing you should do?
Tell your teacher.
200
Do children score better on chapter tests when participating in labs or listening to lectures? This is an example of which step?
Defining the problem
200
Create a hypothesis for the following problem: Does the amount of oxygen in the water affect the number of fish living there?
Answers will vary
200
An instrument used to pour substances from one container to another
Funnel
200
Does adding soap to water allow water to dissolve more sugar? What is the independent variable here?
How much soap you add
300
Name 3 important clothing tips for the lab.
Wear: goggles, gloves, closed toe shoes Do Not Wear: long hair down, dangling jewelry
300
After you record the data from an experiment... Rat A ran the maze in 5.6 seconds Rat B ran the maze in 87.9 seconds ...What should you do next?
1) Research
2) Analyze the data
3) Define the problem
4) Experiment
2) Analyze the data
300
If a scientist records and analyzes data that does not support his or her hypothesis, what should they do?
Revise and restate the hypothesis and try again.
300
Instrument used to measure liquid capacity
Graduated cylinder
300
Is the use of fertilizer going to increase the growth rate of a tree? What is the dependent variable?
Growth rate of a tree
400
Can you tell if a substance is harmful by simply looking at it?
No
400
Analyzing your data means...
Figuring out what it means / why is it important?
400
Forming a hypothesis comes after this step in the scientific method
Research
400
Instrument used to grasp and pick up small items
Forceps
400
Will depriving people of sleep make them less able to win a game of chess? What is the independent variable?
Amount of sleep
500
True or false: Horseplay is only allowed in labs if you are not being mean.
False!
500
You analyzed your data and found that the closer a person is to an eye chart, the more letters they recognize correctly. You type up a research article with the steps you took within the Scientific Method and e-mail it to your favorite science journal. Which step is this?
Communicate the results
500
What is the next step in the scientific method after forming a hypothesis?
Create an experiment
500
Gas burner used to produce high heat
Bunsen Burner
500
Does leaving spoiled food out for two hours attract more flies into a kitchen? What is the dependent variable?