Worksheets › Class 8 › Nature of Matter: Elements, Compounds, and Mixtures
Class 8 Nature of Matter: Elements, Compounds, and Mixtures worksheet
CBSE Science. Elements, compounds and mixtures, alloys, air, electrolysis of water, iron and sulfur. Every sheet has 20 questions in three sections and an answer key, and the numbers change every time.
Sample questions
Real questions from this chapter, as the app sets them. Tap Answer to see the answer and working.
Section A · multiple choice
- 1.
A substance that cannot be broken down into simpler substances is an:
- mixture
- alloy
- compound
- element
Answer
(d) element
- 2.
What kind of substance is water?
- neither, it is not matter
- a form of energy
- compound
- mixture
Answer
(c) compound
- 3.
Which of these is a MIXTURE?
- iron sulfide
- mercury
- oxygen
- poha
Answer
(d) poha
Section B · short answer
- 4.
What is the difference between an element and a compound?
Answer
An element has only one kind of atom and cannot be broken down; a compound has elements combined in a fixed ratio.
- 5.
Is each an "element", a "compound" or a "mixture"? (a) sulfur (b) brass
Answer
(a) element (b) mixture
Section C · long answer
- 6.
Compare a mixture of iron and sulfur with the compound iron sulfide.
Answer
In the mixture, iron is attracted by a magnet and can be separated; with dilute acid it gives hydrogen, which burns with a pop. Iron sulfide is black, not magnetic, cannot be separated by a magnet, and with acid gives a gas that smells of rotten eggs.
Fresh sheets for your child
In the app, every Nature of Matter: Elements, Compounds, and Mixtures sheet is new: the app remembers the questions your child has already had and leaves them out. Print the sheet as a PDF, or use notebook mode and write the answers in a notebook.
Coming soon for Android and iPhone.