Year 8 Science Quiz With Answers

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| By AdamCrestani

AdamCrestani

Community Contributor

Quizzes Created: 1 | Total Attempts: 10,442

Questions: 10 | Attempts: 10,599 | Updated: Dec 20, 2023

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Are you ready to take this 'Year 8 science quiz' that we have presented here for you? Science is a subject that we all know about, but how much of science do we understand? That is the question. Here are some science questions for you to test your current knowledge of science and also to expand it. Do you think you can do this? We wish you good luck, and we hope you do your best. Let's go for it.

Questions and Answers

1.

What is the flow of electricity known as?
- A.
  
  A flow of electrons
- B.
  
  Booker
- C.
  
  Electric Current
- D.
  
  An epic fail
- E.
  
  A series circuit
Correct Answer
C. Electric Current

Explanation
Electric current refers to the flow of electric charge, typically carried by electrons, through a conductor. It is the movement of these charged particles that allows electricity to flow and power electrical devices. Therefore, the given answer "Electric Current" accurately describes the flow of electricity.

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16
0
2.

What are the parts that make up a cell?
- A.
  
  Organelles
- B.
  
  Batteries
- C.
  
  Muscles
- D.
  
  Chloroplasts
- E.
  
  Cell Walls
Correct Answer
A. Organelles

Explanation
The correct answer is organelles. Organelles are the specialized structures within a cell that perform specific functions. They are responsible for carrying out essential processes such as energy production, protein synthesis, and waste removal. Examples of organelles include the nucleus, mitochondria, endoplasmic reticulum, and Golgi apparatus. Unlike batteries, muscles, chloroplasts, and cell walls, organelles are the fundamental components of a cell that enable it to carry out its various functions.

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8
0
3.

In an electrical circuit: Why do electrons move within a conductor when a battery is connected?
- A.
  
  Electrons are attracted to the positive end of the battery and repelled by the negative end.
- B.
  
  Electrons are attracted to the negative end of the battery and repelled by the positive end.
- C.
  
  Electrons move randomly without any specific direction.
- D.
  
  Electrons are neutral and not influenced by the battery.
Correct Answer
A. Electrons are attracted to the positive end of the battery and repelled by the negative end.

Explanation
In an electrical circuit, electrons, which are negatively charged, move within a conductor due to the attraction to the positive end of the battery and repulsion by the negative end. This movement establishes the flow of current in the circuit. Option A correctly describes the influence of the battery on electron movement.

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5
2
4.

What happens when a switch is open?
- A.
  
  It works
- B.
  
  It doesn't work
- C.
  
  The wire breaks
- D.
  
  Nothing happens
- E.
  
  The battery stops working.
Correct Answer
B. It doesn't work

Explanation
When a switch is open, it means that the circuit is not complete, and therefore, the flow of electricity is interrupted. As a result, the device or system connected to the switch will not function or work properly. Hence, the statement "It doesn't work" accurately describes the outcome when a switch is open.

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2
0
5.

Another name for a battery is a cell.
- A.
  
  True
- B.
  
  False
Correct Answer
A. True

Explanation
The statement is true because a battery is often referred to as a cell. The term "cell" is commonly used to describe a single unit that generates electrical energy through chemical reactions, and a battery is made up of multiple cells connected together to provide a higher voltage. Therefore, the statement is correct.

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8
4
6.

Which of the following are found in plant and animal cells?
- A.
  
  Chloroplasts
- B.
  
  Cell wall
- C.
  
  Vacuole
- D.
  
  Cytoplasm
- E.
  
  Nucleus
- F.
  
  Cell Membrane
Correct Answer(s)
D. Cytoplasm
E. Nucleus
F. Cell Membrane

Explanation
The given answer is correct because cytoplasm, nucleus, and cell membrane are all found in both plant and animal cells. Cytoplasm is the gel-like substance that fills the cell and contains various organelles. The nucleus is the control center of the cell, containing the DNA. The cell membrane is the outer boundary of the cell, regulating the passage of substances in and out of the cell. These components are essential for the basic structure and function of both plant and animal cells.

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1
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7.

What liquid is used to make a wet mount slide?
- A.
  
  Water
- B.
  
  Iodine Stain
- C.
  
  Urine
- D.
  
  Coke
Correct Answer
B. Iodine Stain

Explanation
Iodine stain is used to make a wet mount slide. It is commonly used in microbiology to stain cells and make them more visible under a microscope. The stain helps to highlight the cellular structures and make them easier to observe and study. Water, urine, and coke are not typically used for making wet mount slides.

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4
2
8.

Which of the following is used to measure the amount of energy per second in a current
- A.
  
  Ammeter
- B.
  
  Elecmeter
- C.
  
  Switch
- D.
  
  Voltmeter
Correct Answer
D. Voltmeter

Explanation
A voltmeter is used to measure the amount of energy per second in a current. It measures the voltage or potential difference across a circuit, which indicates the amount of energy transferred per unit charge. By measuring the voltage, the voltmeter can determine the amount of energy being supplied or consumed by the current. An ammeter, on the other hand, is used to measure the current flowing through a circuit, while an elecmeter and switch are not instruments used for measuring energy per second in a current.

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4
1
9.

What is electricity?
- A.
  
  A flow of atoms
- B.
  
  A flow of electrons
- C.
  
  My grandmother's name
- D.
  
  A bomb
Correct Answer
B. A flow of electrons

Explanation
Electricity is the flow of electrons. Electrons are negatively charged particles that move from one place to another, creating an electric current. This flow of electrons is what powers electrical devices and allows for the transmission of energy.

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Current Version
Dec 20, 2023

Quiz Edited by
ProProfs Editorial Team
Nov 19, 2013

Quiz Created by
AdamCrestani

Year 8 Science Quiz With Answers

What is the flow of electricity known as?

What are the parts that make up a cell?

In an electrical circuit: Why do electrons move within a conductor when a battery is connected?

What happens when a switch is open?

Another name for a battery is a cell.

Which of the following are found in plant and animal cells?

What liquid is used to make a wet mount slide?

Which of the following is used to measure the amount of energy per second in a current

What is electricity?