Vocab #1
To use one or more of your senses to gather information about something
Observe
To state what you think might happen in the future
Predict
To suggest a possible answer to a problem or question.
Written as an if, then, because statement
Hypothesis
In an experiment, how many variables should be changed?
ONLY 1
Which example is a hypothesis?
*Dawn dish soap removes grease the best.
*If you wash dishes with Dawn dish soap then your dishes will have less grease because Dawn has better cleaning ingredients.
If you wash dishes with Dawn dish soap then your dishes will have less grease because Dawn has better cleaning ingredients.
meter
To make a careful guess about the value of something
Estimate
To provide exact information about the value of something
Measure
"There are about 20 pieces of candy left in my basket"
This is an example of what?
Estimating
This variable is manipulated or changed by the investigator
Independent Variable
Which example is a claim?
*If you eat popcorn then your blood pressure will improve because popcorn has healthy fiber.
*Popcorn improves blood pressure.
Popcorn improves blood pressure.
Base unit for volume
liter or cubic meter
To suggest a possible explanation for an observation
Infer
To group things together based on how they are alike
Classify
After being at the pool all day, Connor came home with very red skin.
Make an inference about Connor's skin:
Connor got sunburnt.
This variable is being measured or observed in an experiment
Dependent Variable
After one month, blood pressure decreased by 2 points in people who ate 3 cups of unsalted popcorn every day.
This is an example of what?
Evidence
Base unit for mass
gram
Use words to describe from all 5 senses (ex: the lemon tastes sour, the tree bark feels bumpy, the sweatshirt is purple)
Qualitative
Use numbers to describe (ex: 2 L of water, Ms. May is 5 ft. and 5 in. tall, there are 3 dollars on my desk)
Quantitative
Ms. May is going camping and wants to identify different trees she may see on her hike. What kind of classification tool could she use to help her?
Dichotomous Key
These stay the same in an experiment
Constants/Controlled Variables
Ms. May wants to know which type of flower (daisies, tulips, or roses) will attract more butterflies to her garden. She decides to set up an experiment. What would be her dependent variable?
the number of butterflies
Base unit for temperature
Celsius
A statement that is believed to be true; to assert as a fact.
claim
Data that is used to indicate whether or not a claim is true (or valid)
evidence
How should a measurement be written?
With a number and unit
Ms. May wants to know which type of flower (daisies, tulips, or roses) will attract more butterflies to her garden. She decides to set up an experiment. What would be her independent variable?
Type of flower
Ms. May wants to know which type of flower (daisies, tulips, or roses) will attract more butterflies to her garden. She decides to set up an experiment. She puts 5 of each flower in the same area of her garden, every day at 12 pm she counts the number of butterflies on each type of flower. She does this for 4 weeks. What constants/controlled variables are in the experiment?
The time of day she counts the butterflies, the area she plants the flowers, the amount of time she conducts the experiment, the number of flowers
Base unit for time
seconds