8th Grade Biology Quizzes , Questions & Answers

Recent Biology Quizzes

This quiz, titled 'Semester 1 Test Review (2 of 3)', assesses understanding of experimental design in biology. It includes questions on controlled variables, the role of control groups, and factors influencing ecosystems, aiming...

Questions: 30 | Attempts: 287 | Last updated: Mar 20, 2025

Sample Question
A scientist plants two rows of corn for experimentation. She puts fertilizer on row 1 but does not put fertilizer on row 2. Both rows receive the same amount of water and light intensity. She checks the growth of the corn over the course of 5 months. What is one controlled variable in this experiment?

Amount of fertlizer given to experimental group

Growth of corn

Type of fertilizer

NeuroplasticITy; What Do People Really Know About IT?

Explore the dynamic world of brain adaptability in 'Neuroplasticity; What Do People Really Know About It?' This quiz assesses understanding of how stress, age, genetics, and activities influence neural pathways, offering insights...

Questions: 10 | Attempts: 862 | Last updated: Mar 22, 2025

Sample Question
Neuroplasticity refers to changes in neural pathways & synapses due to changes in what?

Behavior

Environment

Thinking and Emotions

All of the Above

Basic Biology and Chemistry Questions Quiz

Are you looking for some basic biology and chemistry questions to test out your understanding of some of the topics covered in a class? The quiz below is exactly what you need, and al that you have to do is give it a try and get...

Questions: 5 | Attempts: 1921 | Last updated: Mar 21, 2025

Sample Question
What is Diffusion?

Diffusion is the movement of molecules from low to high concentration with the help of ATP.

Diffusion is the movement of molecules from high to low concentration.

Diffusion is the movement of water molecules from low to high concentration.

Diffusion is the movement of molecules from low to high concentration.

Nutrition and Wellness Carbohydrate Vocabulary Quiz

FCS-FNW-1. Students will discuss basic nutrient requirements and their use in dietary planning. a) Define nutrition, essential and non-essential nutrients; identify and describe the...

Questions: 20 | Attempts: 522 | Last updated: Mar 21, 2025

Sample Question
One of the six classes of nutrients that includes sugars, starches and fiber. The body's main source of energy

Carbohydrates

Proteins

Fats

Vitamins

The Challenging Biology Quiz 2

Take this challenging quiz on biology and compare your score with others too!

Questions: 21 | Attempts: 843 | Last updated: Mar 21, 2025

Sample Question
A Carbohydrate consists of

Amino acid units

One or more sugar units

Lipid droplets

Glycerol

Bio Quiz--introduction To Life

The 'Bio Quiz--Introduction to Life' assesses knowledge on cell theory, characteristics of life, and experimental design in biology. It tests understanding of basic biological principles and their application in experimental...

Questions: 10 | Attempts: 103 | Last updated: Oct 5, 2025

Sample Question
Which of the following is NOT a principle of the cell theory?

Cells are the basic units of life.

All living things are made of cells.

Very few cells reproduce.

All cells come from existing cells.

Unit 1 Target 8-experimental Design Quiz

This quiz in Unit 1 Target 8 evaluates understanding of experimental design in biology. It includes scenarios on plant light preferences, soil chemistry's effect on flower color, temperature effects on crustaceans, and enzyme...

Questions: 10 | Attempts: 1783 | Last updated: Mar 20, 2025

Sample Question
Aisha wants to conduct an experiment to determine whether sun and shade varieties of the same plant species prefer the same wavelengths of light. She plans to measure rates of photosynthesis. Which design would be best for her experiment.

1 plant of the sun variety tested under blue light only, and 1 plant of the shade variety tested under blue light only

4 plants of the sun variety: 1 tested under blue light, 1 under green, 1 under red, and 1 under yellow light with 4 plants of the shade variety: 1 tested under blue light, 1 under green, 1 under red, and 1 under yellow light

10 plants of the sun variety tested under blue light only; and 10 plants of the shade variety tested under blue light only

40 plants of the sun variety: 10 tested under blue light, 10 under green, 10 under red, and 10 under yellow light with 40 plants of the shade variety: 10 tested under blue light, 10 under green, 10 under red, and 10 under yellow light

Unit 1 Target 1: Experimental Design

This quiz, titled 'Unit 1 Target 1: Experimental Design,' evaluates understanding of experimental setups in biology. It covers experiments on plant light preferences, soil chemistry effects on flower color, bird population...

Questions: 10 | Attempts: 787 | Last updated: Mar 21, 2025

Sample Question
Aisha wants to conduct an experiment to determine whether sun and shade varieties of the same plant species prefer the same wavelengths of light. She plans to measure rates of photosynthesis. Which design would be best for her experiment.

1 plant of the sun variety tested under blue light only, and 1 plant of the shade variety tested under blue light only

4 plants of the sun variety: 1 tested under blue light, 1 under green, 1 under red, and 1 under yellow light with 4 plants of the shade variety: 1 tested under blue light, 1 under green, 1 under red, and 1 under yellow light

10 plants of the sun variety tested under blue light only; and 10 plants of the shade variety tested under blue light only

40 plants of the sun variety: 10 tested under blue light, 10 under green, 10 under red, and 10 under yellow light with 40 plants of the shade variety: 10 tested under blue light, 10 under green, 10 under red, and 10 under yellow light

Yr 9 Science Disease

This YR 9 SCIENCE DISEASE quiz assesses knowledge on disease prevention, focusing on handwashing, the immune system, antigens, and cell types. It enhances understanding of how our bodies fight diseases, crucial for students...

Questions: 20 | Attempts: 584 | Last updated: Mar 21, 2025

Sample Question
It is most effective to wash your hands

In warm water

In warm water with soap

In cold water

Any of the above are effective

Non of the above are effective

Module 3 - Kingdom Protista

In this quiz, we'll look at kingdom Protista, which consists of organisms that cannot be classified as plants, animals or fungus. How much do you know about these organisms? There is only one way to find out. All the best.

Questions: 18 | Attempts: 735 | Last updated: Mar 21, 2025

Sample Question
Which characteristic is related to protozoa as compared to algae? Check all that apply...(hint: there are 3 choices)

Live in colonies

Live alone

Autotrophic

Heterotrophic

Means of locomotion

Float in water

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