WorksheetsThere's a Method to my madness!
Total questions: 19
Worksheet time: 40mins
Nick is performing an investigation with several plants. He places a box under a bright lamp and covers one-half of the box to create shade. He puts half of each plant in the light and leaves the other half in the shade. After several days he notices that the plants are leaning towards the side with the light.
Based on his investigation, which of the following is an observation and NOT a personal opinion?
Plants should not be placed in too much light
Plants should not be watered too much.
Plants grow towards light.
Plants are happier in the light.
Charlotte is conducting an experiment on roaches. Which of the following observations is testable?
Roaches can live for 10 days without their
head.
Roaches are disgusting insects.
Roaches should not exist.
Roaches are important to the ecosystem.
Eric is designing an experiment to see whether salt or sugar will attract the most ants.
Which statement best describes why Eric should write down his procedures?
Dr. Kangriwala was studying 10 patients with skin cancer and 10 patients with healthy skin. He found that the 10 patients with skin cancer all spent 50 minutes or more at the beach, every weekend without sunscreen.
Which of the following conclusions is Dr. Kangriwala most likely to arrive at?
Sun exposure without sunscreen may increase the risk of skin cancer.
Alina was conducting an experiment with bacteria in a petri dish. She had two identical dishes with bacteria in them. He placed penicillin in one of the dishes. He noticed that the bacteria did not grow near the penicillin.
Which of the following is a reasonable conclusion for Alina to make regarding the experiment?
Penicillin stops bacterial growth.
Mrs. Lam's class was doing an experiment to see how fast a ball would roll down an inclined plane. The distance that each ball traveled is 1 meter. Each group performed three different trials and averaged the results.
What should the class do next, since there was quite a large difference in average times?
Matheo read an article stating that taking vitamin C when catching a cold can help an individual recover faster. It does seem that taking vitamin C reduces recovery time.
What is the main problem with concluding that vitamin C reduces recovery time?
We do not know how long the cold would have lasted without vitamin C.
We do not know if they like vitaman C
We do not know if vitamin C is healthy.
We do not know if vitamin C may have side effects.
Aniya has a box of "Tomato-riffic," a new type of fertilizer for tomatoes. She also has 20 small tomato plants and a large garden to grow them. She decides to conduct an experiment to test how well the fertilizer works. Which describes the control group that Aniya should use?
Tomato plants that receive the 'Tomato-riffic' fertilizer.
The science teacher tells Tyler that he needs to include a control group in his experiment. Tyler can study a control group by repeating his procedure, but with one change. Which change should he include?
In step 1, do not add food scraps to the soil.
Skip step 3, so the soil remains dry.
Skip step 4 so there is no paper plate.
In step 4, use a sheet of paper that completely covers the soil.
Tyler's friends say that they also have observed earthworms after rainstorms. How is Tyler's experiment more useful than the observations of his friends?
The experiment allowed a hypothesis to be tested in a controlled experiment.
The experiment tested a small number of earthworms.
The experiment studied earthworms in a terrarium, not outdoors.
The experiment studied soil that could be soaked in water.
Which is the most useful conclusion of the experiment?
Earthworms need the water that may fill spaces in the soil.
Earthworms need the air that typically fills spaces in the soil.
Earthworms eat bits of food that they find in the soil.
Earthworms can move through dry soil but not wet soil.
During a field trip, Solimar noticed something about the bridge. Which of the following is an observation, not an inference?
The bridge is built above the trees.
The bridge took a long time to build.
It took large machines to build the bridge.
Deyvid noticed something about his friend Julissa. Which statement is an observation?
That house is empty because there are no lights on.
Her hair is black.
Her hair is black because she dyed it.
Her hair has not been cut in two years.
Amani is observing different objects. Which of the following is NOT an observation?
The pizza has 8 slices.
The lizard is slimy and gross.
The liquid is green.
The leaf is 3 centimeters wide.
What is the main goal of hypothesis testing?
To prove a hypothesis is correct
To determine if a hypothesis is supported by data
To create a new hypothesis
To collect more data
the factors that do not change in an experiment
constants
control
dependent variable
independent variable
The factor that the scientist intentionally changes
Constants
Control
Hypothesis
Variable
During a science fair, Mia conducted an experiment to see how different types of soil affect plant growth. She used three types of soil: sandy, clay, and loamy. After several weeks, she observed that plants in loamy soil grew the tallest.
What conclusion can Mia draw from her experiment?
Plants do not need soil to grow.
Clay soil is better than sandy soil for plant growth.
Loamy soil is the best for plant growth among the types tested.
All types of soil are equally good for plant growth.
In a classroom experiment, students were asked to measure the temperature of water at different times after adding ice. They recorded the temperature every 5 minutes for 30 minutes. What should the students do if they notice an unexpected temperature reading?
Ask the teacher to explain the reading.
Change the experiment to avoid such readings.
Repeat the measurement to confirm the reading.
Ignore the reading and continue with the experiment.
