Scientific Method
Inference vs Observation
Graphs
Controls and Variables
Science Jobs
100
Bob read about growing plants in water. He wanted to know how plants could grow without soil.
Make and observation and create a question
100
There is light coming from the TV
Observation
100
I had just left home when I realized I had forgotten my books, so I went back to pick them up. I ate a snack and then continued my journey.
iv
100
Mr. Krabs created a secret ingredient for a breath mint that he thinks will “cure” the bad breath people get from eating crabby patties at the Krusty Krab. He asked 100 customers with a history of bad breath to try his new breath mint. He had fifty customers (Group A) eat a breath mint after they finished eating a crabby patty. The other fifty (Group B) also received a breath mint after they finished the sandwich; however, it was just a regular breath mint and did not have the secret ingredient. Both groups were told that they were getting the breath mint that would cure their bad breath. Two hours after eating the crabby patties, thirty customers in Group A and ten customers in Group B reported having better breath than they normally had after eating crabby patties.
What is the control group?
Group B
100
Someone who operate on patients.
Surgeon
200
Alice soaked six different kinds of seeds in water for 24 hours. Then she planted the seeds in soil at a depth of I cm. She used the same amount of water, light, and heat for each kind of seed.
Test the hypothesis with an experiment
200
Mr. Hennrikus is wearing a collared shirt.
Observation
200
Things went fine until I had a flat tire. I fixed it and kept going.
ii
200
Mr. Krabs created a secret ingredient for a breath mint that he thinks will “cure” the bad breath people get from eating crabby patties at the Krusty Krab. He asked 100 customers with a history of bad breath to try his new breath mint. He had fifty customers (Group A) eat a breath mint after they finished eating a crabby patty. The other fifty (Group B) also received a breath mint after they finished the sandwich; however, it was just a regular breath mint and did not have the secret ingredient. Both groups were told that they were getting the breath mint that would cure their bad breath. Two hours after eating the crabby patties, thirty customers in Group A and ten customers in Group B reported having better breath than they normally had after eating crabby patties.
What is the independent variable?
The secret ingredient
200
An individual trained to pilot and/or travel in a spacecraft, work in space, and do activities related to human space exploration.
astronaut
300
Kevin said, “If I grow five seedlings in red light, I think the plants will grow faster than the five plants grown in white light.”
Form a hypothesis
300
A stegosaurus is an herbivore
Inference
300
I started out calmly, but sped up when I realized I was going to be late.
i
300
SpongeBob noticed that his favorite pants were not as clean as they used to be. His friend Sandy told him that he should try using Clean-O detergent, a new laundry soap she found at Sail-Mart.
SpongeBob made sure to wash one pair of pants in plain water and another pair in water with the Clean-O detergent. After washing both pairs of pants a total of three times, the pants washed in the Clean-O detergent did not appear to be any cleaner than the pants washed in plain water.
What was songebobs question?
Is Clean-O detergent effective?
300
Someone who studies earth processes such as earthquakes, landslides, floods, and volcanic eruptions.
Geologist
400
Michael fed different diets to three groups of guinea pigs. His experiment showed that guinea pigs need vitamin C and protein in their diets.
Draw conclusions
400
Our team is going to win jeopardy
Inference
400
What two activities take up 30% of the day?
Watching tv and talking on the phone
400
SpongeBob noticed that his favorite pants were not as clean as they used to be. His friend Sandy told him that he should try using Clean-O detergent, a new laundry soap she found at Sail-Mart.
SpongeBob made sure to wash one pair of pants in plain water and another pair in water with the Clean-O detergent. After washing both pairs of pants a total of three times, the pants washed in the Clean-O detergent did not appear to be any cleaner than the pants washed in plain water.
What is the independent variable?
Laundry Soap
400
A scientist who studies fossils.
Paleontologist
500
Justin wondered if dyes could be taken out of plant leaves, flowers, and stems
Make and observation and create a question
500
We will have no homework tonight.
Inference
500
Stopped, parked
500
SpongeBob noticed that his favorite pants were not as clean as they used to be. His friend Sandy told him that he should try using Clean-O detergent, a new laundry soap she found at Sail-Mart.
SpongeBob made sure to wash one pair of pants in plain water and another pair in water with the Clean-O detergent. After washing both pairs of pants a total of three times, the pants washed in the Clean-O detergent did not appear to be any cleaner than the pants washed in plain water.
What should his conclusion be?
Clean-O detergent is not any better at cleaning pants than plain water
500
Someone who studys planets and the sun in our own solar system, as well as other stars, solar systems, galaxies, and the whole universe.
Astronomers