Biology 1 Ch 1-3 1st Sem. test
Flashcard
•
Biology
•
10th Grade
•
Practice Problem
•
Hard
Wayground Content
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15 questions
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1.
FLASHCARD QUESTION
Front
What property of a water molecule allows hydrogen bonds to form among adjacent molecules?
Back
The polarity of the molecule, which involves a slightly negative oxygen atom and slightly positive hydrogen atoms.
2.
FLASHCARD QUESTION
Front
What allows the three atoms in a water molecule to stay together?
Back
Covalent bonds formed by shared electrons between atoms.
3.
FLASHCARD QUESTION
Front
In a chemical reaction, which event ALWAYS occurs as the reaction proceeds?
Back
The rearrangement of electrons to break or form chemical bonds.
4.
FLASHCARD QUESTION
Front
What group is used to compare the effects of the independent variable since this group is exposed to the same conditions besides the independent variable?
Back
Control Group.
5.
FLASHCARD QUESTION
Front
A logical interpretation of an observation is...
Back
An inference.
6.
FLASHCARD QUESTION
Front
Define covalent bond.
Back
A chemical bond formed by the sharing of electrons between atoms.
7.
FLASHCARD QUESTION
Front
What is the role of a control group in an experiment?
Back
To provide a baseline for comparison against the experimental group.
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