8th Science Quize 1

QUESTION 1-3: 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.

1. In logic, a statement of fact is called a proposition.

2. A model of a design that is used for testing is a hypothesis.

3. A good scientific experiment should include ___ independent variables.

• one

• two

• three

• four

Which group in an experiment is used as the standard for comparison?

• hypothesis group

• control group

• experimental group

• observation group

Tommy is making a conclusion using deductive reasoning. He has the statement "If it is raining, the ground is wet." In this statement, what is "the ground is wet" called?

• antecedent

• conclusion

• consequent

• evidence

For an experiment on plant growth, Pine Pine 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

• controlled variable

• dependent variable

QUESTION 7-10

FILL IN THE BLANKS: Write the best word(s) that complete(s) the statement.

A conclusion based on reasoning from evidence is a (n) ___.

The substance of the physical universe is called ____.

The study of soil is called ____.

The three main components of the scientific method are hypothesizing, ______, and experimenting.