MODIFIED TRUE/FALSE: If the statement is true, write true in the blank. If it is false, replace the underlined word(s) with the word(s) that will make the statement true. Arjun claims, "The sky is blue." In logic, a statement of fact like this is called a proposition.

​ (a)  

• hypothesis

• conclusion

• assumption

• true

MODIFIED TRUE/FALSE: If the statement is true, write true in the blank. If it is false, replace the underlined word(s) with the word(s) that will make the statement true. Ethan is setting up a science experiment and thinks a good scientific experiment should include two independent variables.

​ (a)  

• three

• four

• five

• one

• true

MODIFIED TRUE/FALSE: If the statement is true, write true in the blank. If it is false, replace the underlined word(s) with the word(s) that will make the statement true. Scarlett is building a new type of toy car. A model of her design that she uses for testing is a hypothesis.

(a)  

• prototype

• theory

• experiment

• blueprint

• true

Tags

NGSS.MS-ETS1-4

For an experiment on plant growth, John used soil with fertilizer as the experimental group and soil without fertilizer as the control group. In his experiment, what type of variable is the presence of fertilizer?

• independent variable

• uncontrolled variable

• control variable

• dependent variable

Tags

NGSS.MS-ETS1-1

NGSS.MS-ETS1-2

Hannah is conducting an experiment to test the effect of a new fertilizer on plant growth. Which group in her experiment should be used as the standard for comparison?

• hypothesis group

• control group

• experimental group

• observation group

Priya is thinking about her morning routine. She knows, "If I water the plants, the soil is moist." In this statement, what is "the soil is moist" called?

• antecedent

• conclusion

• consequent

• evidence

Rohan is curious about what everything around him—like his desk, books, and even the air—is made of. He asks his teacher, "What is the substance of the physical universe called?" What should his teacher answer?

• matter

• energy

• light

• space

Priya wants to solve a problem using the scientific method. She starts by hypothesizing, then she knows she must do something before experimenting. The three main components of the scientific method are hypothesizing, __?, and experimenting.

• observing

• measuring

• calculating

• predicting

After observing that the grass is wet in the morning, Isla concludes that it must have rained last night. This conclusion based on reasoning from evidence is a(n) __?

• inference

• hypothesis

• observation

• prediction

Aria is curious about the different layers and types of soil in her backyard garden. She wants to learn more about the scientific study of soil. The study of soil is called __?

• pedology

• ornithology

• entomology

• geology