Elements, Compounds and Mixtures Quiz for 8th Grade Students

Questions : 12 | Total Attempts: 96 | Recent Updated: 08-Nov-2023
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If are you a student of Eighth grade and looking for some interesting questions on Elements, Compounds, and Mixtures then you have come to the right place. In this quiz, you will find out some interesting questions on Elements, Compounds, and Mixture. Before starting this quiz, let me explain about Elements, Compounds, and Mixtures. Elements are the simplest substances in chemistry. They are made up of only one type of atom. Each element has unique properties and is represented by a chemical symbol. Compounds: Compounds are formed when two or more different elements chemically combine in fixed ratios. Mixtures: Mixtures are combinations of substances that are physically mixed together but not chemically bonded. Mixtures can be separated by physical means like filtration, distillation, or magnetism. So let's start this quiz and learn something new about Elements, Compounds, and Mixtures.

Questions Excerpt


1. Which of the following is an example of an element?

A. Salt

B. Water

C. Oxygen (O2)

D. Lemonade

2. What happens when different elements combine to form a compound?

A. They become a mixture

B. They change into new elements

C. They retain their individual properties

D. They lose their individual properties

3. Which of the following is a compound?

A. Iron (Fe)

B. Carbon (C)

C. Gold (Au)

D. Carbon dioxide (CO2)

4. What is a mixture that has the same composition and properties throughout?

A. Compound

B. Element

C. Heterogeneous mixture

D. Homogeneous mixture

5. Which of the following is an example of a homogeneous mixture?

A. Saltwater

B. Sand and water

C. Oil and water

D. Salt and pepper

6. What can be used to separate a mixture of sand and salt?

A. Filtration

B. Distillation

C. Magnetism

D. Evaporation

7. Which of the following is a physical change?

A. Melting ice

B. Burning wood

C. Rusting of iron

D. Digesting food

8. Which of the following is a chemical change?

A. Boiling water

B. Cutting paper

C. Baking a cake

D. Freezing juice

9. How many different elements are there in a compound like methane (CH4)?

A. Ten elements

B. Five elements

C. Two elements

D. Four elements

10. Which of the following is a mixture of two elements?

A. Water and salt

B. Oxygen and nitrogen

C. Hydrogen and helium

D. Carbon and oxygen

11. What can be used to separate a mixture of oil and water?

A. Filtration

B. Distillation

C. Magnetism

D. Dissolution

12. How can you separate a mixture of iron nails and sand?

A. Filtration

B. Distillation

C. Magnetism

D. Dissolution

 

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