Show:
Practice makes Perfect
Method to madness
Vocabulary
Understanding
Variables
100
In the salinity lab, which group of beans was the experimental group?
What is the beans soaked in salty water?
100
Prediction about an observation.
What is a hypothesis?
100
The group that stays the same and is left alone
What is control group?
100
A good hypothesis is testable or non testable?
What is testable?
100
This group is used as a comparison to the experimental group, in order to observe what did and didn't change
What is control group?
200
In the salinity lab, which group of beans was the control group?
What is the beans soaked in fresh water?
200
An organizes way to solve problems and draw conclusions is also known as _________
What is the scientific method?
200
The group you change something in
What is the experimental group?
200
Another name for independent variable
What is test variable?
200
T/F: Changing more than one variable at a time is a good science practice.
What is false?
300
A scientist is researching possible cures for cancer. Why would it be important for the scientist to record and publish her procedure? a. So she can hide it and claim it as her own once she finds a cure b. So that no other scientists can copy her work c. So that other scientists can repeat her experiment and give it validity if they get the same results d. So that her boss will be able to make sure she is doing her work
What is C: so that other scientists can repeat her experiment and give it validity if they get the same results
300
The part where you find more information on an idea.
What is research?
300
The outcome variable
What is the dependent variable?
300
The dependent variable is also known as the.....
What is outcome variable?
300
Randy's science teacher is giving a demonstration to show how metal reacts with different acids. He places a small piece of metal in each of the 3 beakers containing a solution of different acid. He adds a piece of metal to a 4th beaker that contains only water. What group is the fourth beaker?
What is the control group?
400
In order to maintain validity, what is a step a scientist should take after completing an experiment and developing a theory? a. Avoid speaking publicly about the theory for several years b. Continue to repeat the experiment until a different result occurs c. Allow other scientists to view records and replicate the experiment d. Send the information to the government first
What is a: avoid speaking publicly about the theory for several years
400
In which part of the scientific method would you interpret the results in an investigation?
What is analysis?
400
The thing you change to see if it has an effect.
What is the independent variable?
400
Which of the following is NOT based on the scientific method? Hypothesis, Analysis, Opinion, Conclusion, Research
What is opinion?
400
Colleen waters her plants once a day. She wants to find out if the plants will grow more leaves if they are watered more. She counts the number of leaves on each plant before she starts. She then continues to water half of each type of plant once daily, but then she waters the other half of each type of plant twice daily. She counts the number of leaves to see if the plant grew. What is the test variable?
What is the amount of water?
500
7. Josh wants to know if air temperature affects the chirping of crickets. He thinks that they chirp faster on warmer nights. To find out, he put three groups of equal numbers of crickets in the same type of shelter and gives them equal amounts of food, water, and light. To test his hypothesis, he keeps one group at room temperature (25 degrees Celsius), warms another to 30 degrees Celsius, and cools the last to 20 degrees Celsius. At these temperatures, he listens to each group one by one and records the number of cricket chirps in one minute. What is the INDEPENDENT variable? a) chirping of crickets B) amount of light C) air pressure D) air temperature
What is d: air temp
500
In which part of the scientific method would you explain if the data supports or fails to support the hypothesis?
What is conclusion?
500
Something measured or observed that responds to the test variable
What is the dependent variable?
500
If a hypothesis is shown to be true within a high statistical probability, can it still be wrong? (yes or no) try to explain
What is yes? The hypothesis can still be incorrect.
500
Colleen waters her plants once a day. She wants to find out if the plants will grow more leaves if they are watered more. She counts the number of leaves on each plant before she starts. She then continues to water half of each type of plant once daily, but then she waters the other half of each type of plant twice daily. She counts the number of leaves to see if the plant grew. What is the outcome variable?
What is the number of leaves?