What is Science?
Observations, inferences, and predictions
Variables
Testable Questions
The Hypothesis
100
What are the three branches of science?
Life, physical, earth
100
True or False: Scientists only use one type of observation when conducting experiments
False! They use quantitative AND qualitative experiments
100
What is an independent variable?
Something you control or change in an experiment
100
What are two rules for creating a testable question?
Must be specific, must have one thing changing one other thing, must not be based on an opinion, and cannot be answered making an observation
100
A hypothesis is written in what format?
If...Then...Because
Double points if you put:
If (Independent), Then (Dependent), Because (Explain)
200
The branch of science that deals with earth, its materials, and its atmosphere
Earth
200
What is a quantitative observation AND what is a qualitative observation?
Quan - numbers
Qual - 5 senses
200
What is a dependent variable?
Something you measure in an experiment
200
Does the amount of salt I add to my cookies affect how fluffy the cookies are?
Is this testable?
Yes!
200
Would this be a good hypothesis?
"Does the type of soap affect how clean a table can get?"
NO! That is a testable question
300
The branch of science that deals with nonliving things
physical science
300
What is the difference between an inference and a prediction?
An inference is an explanation about what is currently happening and a prediction is what you think could happen next
300
How many independent variables should there be in an experiment? How many dependent?
1 of each!
300
Is this a testable question: Do leprechauns exist?
No!
300
DAILY DOUBLE
What is the A-ha moment, or the final statement where you say what the experiment proved?
The Conclusion
400
Somebody who studies the weather would be studying what branch of science?
Earth Science
400
"This tomato has 15 eyelashes" what type of observation is this? 
Quantitative
400
Terry is eating a different protein bar everyday before she goes for a 3 mile run. She wants to see if the protein bar affects how fast she can complete each run. What would the dependent variable in this experiment be?
How fast she completes the run
400
Is this a testable question:
Does the color, shape, and size of a watermelon affect how sweet it is and how many seeds are in it?
No: A testable question always includes ONE thing affecting ONE other thing
400
Describe why this would not be a good hypothesis:
If I eat potatoes everyday, it is because I just really like potatoes
A hypothesis needs to follow the format:
If...Then...Because
500
Somebody who unearths (digs up) dinosaur fossils is would be studying which branch of science?
Earth Science
500
Make an inference about this picture:
Answers may vary
500
Brian saw online that watering tomatoes with milk helps them grow faster. Everyday, Brian waters one tomato plant with water, one with milk, and another with apple juice. He measures each plant's height once a week for three months. Label the independent AND the dependent variables
Independent: Liquid used on the plants (Water, milk, and apply juice)
Dependent: Plant height
500
Write a testable question given the following information:
Observation - I notice some paper towels clean better than others
Independent Variable - Different types of paper towels
Dependent Variable - How much water it absorbs
Does the type of paper towel affect how much water it absorbs?
500
Write a hypothesis given the following testable question:
Does the color of clothes affect my mood for the day?
Something along the lines of "If I wear brighter colors, then I will feel happier throughout the day because bright colors make me happy"