Q: When we move down a group of elements on the periodic table, what happens to their electronegativity? Choices: - it increases - it stays the same - it doubles - it decreases A:
it decreases

(Question)
Q: In science, what can be described as a set of steps that help us to answer questions? Choices: - theory - hypothesis - scientific controls - scientific method A:
(Answer)
scientific method

Ques: Q: What is the term for the affected factor in an experiment? Choices: - multiple variable - stable variable - independent variable - dependent variable A:
Ans: dependent variable

(Q).
Q: What group of animals has permeable skin that makes them vulnerable to pollution? Choices: - fish - mammals - reptiles - amphibians A:
(A).
amphibians

Ques:Q: Most scientists think that ordinary matter makes up how much of the total matter in the universe? Choices: - greater than half - about half - more than half - less than half A:

Ans:less than half

Q: Which two states of matter have definite volumes? Choices: - bacteria and liquids - GAS AND LIQUIDS - contrasts and liquids - solids and liquids A:
solids and liquids