
Science Quiz
Quiz
•
Biology
•
3rd Grade
•
Practice Problem
•
Hard
shani 2468
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12 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the scientific method?
A systematic way of investigating and testing hypotheses through experimentation and observation.
A process of randomly selecting an answer without any reasoning
A way of proving whatever you want to be true
A method for making wild guesses without any evidence
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Explain diffusion in simple terms.
The movement of particles from an area of low concentration to an area of high concentration.
Diffusion occurs only in liquids and not in gases or solids.
Diffusion is the process of particles staying in the same area without moving.
The movement of particles from an area of high concentration to an area of low concentration.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Define osmosis.
Movement of solvent molecules from an area of lower solute concentration to an area of higher solute concentration through a semi-permeable membrane
The process of water moving from an area of high concentration to an area of low concentration through a semi-permeable membrane
Movement of solute molecules from an area of higher solute concentration to an area of lower solute concentration through a semi-permeable membrane
The movement of solute molecules from an area of lower solute concentration to an area of higher solute concentration without a semi-permeable membrane
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is a hypotonic solution?
A solution with higher solute concentration than another solution
A solution with no solute concentration
A solution with equal solute concentration to another solution
A solution with lower solute concentration than another solution
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Explain the concept of hypertonic solution.
A hypertonic solution causes cells to divide rapidly.
A hypertonic solution causes cells to shrink due to water leaving the cell and moving into the surrounding solution.
A hypertonic solution causes cells to expand due to water entering the cell from the surrounding solution.
A hypertonic solution has no effect on the size of cells.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How does active transport work in cells?
By using passive diffusion to move molecules with their concentration gradient
By using energy from ATP to move molecules against their concentration gradient
By using energy from glucose to move molecules against their concentration gradient
By using osmosis to move molecules across the cell membrane
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What happens to a cell in a hypotonic solution?
It divides into two smaller cells
It swells and may burst
It remains unchanged
It shrinks and becomes dehydrated
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