Unit 1 Review

When you make a prediction, what type of evidence do you need to have?

• senses

• empirical evidence

• persistant

• I did not study.

Tags

NGSS.MS-LS1-4

What do you need for a scientifically valid conclusion?

• A letter from your mom

• reference material from recent discoveries

• detailed records from observations

• new computer equipment

If I am using two toy cars with different masses and I roll them down a ramp to measure how fast they go. What is my outcome variable?

• the mass of cars

• height of ramp

• type of car

• speed of car

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

I am studying the effects of pollution on oysters in two location. One location is near the city and one is near an isolated island. I will count the number of oysters in each location twice a month for one year. What would be my outcome variable?

• amount of pollution

• number of oysters at each location

• temperature of the water

• number of times the oysters were counted

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

If I am testing how different colors of light affect plant growth and I say "I think yellow light will make the plant grow faster". I made the following steps; I place five identical soybean plants with equal soil and water. One plant with yellow light one plant with red light and one plant with blue light. The height of the plants is measured daily for 2 weeks. What essential part of the experiment is missing?

• the question

• the hypothesis

• the control group

• an outcome variable

Tags

NGSS.MS-ETS1-1

I am testing the hypothesis that my plants will grow better in compost. I test 4 of the same plant in plain soil and 4 in the compost. All plants receive the same water, fertilizer and light. What would improve the experiment?

• using green light

• using more types of plants

• have one plant with no fertilizer

• use different soil for each plant

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

NGSS.MS-LS2-4

I am going to mix bleach in with 200 mL water to see how it affects the growth of soybeans. Each plant has identical pots, soil, and light. The table shows the final height in cm of the plants at the end of the experiment.

Did the experiment correctly use the scientific method for experimentation?

• No, there was not enough bleach to make a difference.

• No, there was no control so there was nothing for comparison.

• Yes, there were trials and a lot of test variables (independent) were tested.

• Yes, there were many trials and all of the plants grew. Meeting their requirement.

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

I make 3 solar cookers. I paint one red, one black, and one white. I put a thermometer inside each of them and put them outside in the sun. Every 30 minutes I check the temperature. What is the dependent or outcome variable?

• repetition

• box size

• color of boxes

• temperature

Tags

NGSS.MS-PS3-4

What is a hypothesis?

• It is a theory explaining what will happen in an experiment.

• It is a law explaining what will happen.

• It is the first step in the scientific method.

• It is a prediction about what may happen in an experiment

Which of the following is scientific repetition?

• A scientist doing my experiment to see if my data is correct.

• Doing an experiment backwards to make it valid.

• Using 3 identical plants for each group trial in an experiment.

• Ms. Gilmore saying this again.