vocabulary
an observation that involves numbers
What is Quantitative
In the situation; "Molly wants to see which material-popsicle sticks or tooth picks-will build the strongest bridge". What variable is the strength of the bridge?
What is dependent variable
the actual steps of your experiment are called
What is procedure
a hypothesis should be written as...
What is an if-then statement
a good scientific question must be
What is testable/measurable
an educated guess
What is hypothesis
In the situation; "Will my bananas turn brown quicker in the dark pantry or sitting out on the counter?" Which variable is the location?
What is Independent variable
how is the controlled variable different than the independent variable
The controlled one stays the same and the independent changes
In the situation; "The plant that was given filtered water grew 3 inches over one month. The plant that was given unfiltered water grew 5 inches in the same amount of time. All other variables were the same" What should your hypothesis be?
Answers will vary. What is Ex:If I give plants unfiltered water, then they will grow 5 inches in a month.
Why is the following question not testable? "Will the rabbit hop away if it is scared?"
What is it is an emotion and emotions cannot be tested.
an observation that involves a description
What is qualitative
In the situation; "Will the temperature of water affect the growth rate of a plant?"
What do we call the type of water we use since we don't change the type of water?
What is a control
"The grass was green and very tall." Is this a quantitative or qualitative observation
What is a qualitative observation
In the situation; "When we placed a moving toy on the floor the rat chased it. When I put a toy on the floor that didn't move, the rat showed no interest." What should your hypothesis be?
Answers will vary.What is Ex: If I give a rat a moving toy, then it will chase it.
Is the following question testable? Why or why not? "Will the construction paper get hotter than the computer paper when it sits in the sun?"
What is Yes, you can use a thermometer to measure temperature.
a universal system to test ideas and theories
What is scientific method
In the situation "Do footballs made of leather or plastic travel farther?" Which is the dependent variable?
What is the distance traveled
Raul walks into his kitchen to find milk spilled all over the floor...He thinks his little brother was trying to get milk by himself. He is making an
What is inference
In the situation; "When I use liquid laundry detergent I break out with a rash, powdered laundry detergent does not bother me at all." What should your hypothesis be?
Answers will vary. What is Ex: If I use liquid laundry detergent, then I will break out in a rash.
Why is the following question not testable? "Do boys or girls like tacos better?"
What is it is an opinion
a variable that is purposefully changed in the experiment
What is independent variable
In the situation; "Which material will keep the heat in longer-metal or glass?" What is the independent variable?
What is material (metal/glass)
What is the difference between an inference and prediction?
an inference is an educated guess based on current observations, a prediction is a random guess about the future.
In the situation: "When my kids wear brand A sandals their feet and sandals smell really bad, this doesn't happen when I use brand B." What should your hypothesis be?
Answers will vary. What is Ex: If I buy brand A shoes for my kids, then they will have smelly feet.
Is the following question testable? Why or why not? "Which brand of paper towel will absorb more water-generic or name brand?"
What is yes, you can measure how much water it soaks in or absorbs