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Olympiad (Class 5) Matter — practice questions

Explore 45 free Matter questions in Olympiad (Class 5) Science. Open each question or exercise to read its content, reference answers and available explanation.

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Matter questions and exercises with answers

Showing questions 1–30 of 45.

Which statement best describes matter?Read the answer and worked solution →Why do we count air as matter even though we cannot see it?Read the answer and worked solution →Which of these has no mass and is therefore not matter?Read the answer and worked solution →All the everyday things we can touch are made of tiny particles called what?Read the answer and worked solution →Which list gives the three most familiar states of matter?Read the answer and worked solution →Which ancient Indian philosopher proposed that matter is built from tiny blocks?Read the answer and worked solution →Which ancient Greek thinker also suggested that matter is made of tiny blocks?Read the answer and worked solution →Which statement about the parts of a mixture is correct?Read the answer and worked solution →Sand is stirred into water. What is true of the sand afterwards?Read the answer and worked solution →Which of these is a heterogeneous mixture?Read the answer and worked solution →Sugar dissolved fully in tea tastes the same everywhere in the cup. What kind of mixture is it?Read the answer and worked solution →What is air, in terms of the kinds of matter?Read the answer and worked solution →When salt dissolves in water, what is the water called?Read the answer and worked solution →What is a solute?Read the answer and worked solution →A farmer wants to separate sand from muddy water. Which method suits best?Read the answer and worked solution →Why can a filter paper NOT take dissolved salt out of salt water?Read the answer and worked solution →How can you separate a mixture of salt and sand?Read the answer and worked solution →Clear salt water is left in a shallow dish in the sun for many days. What is left in the dish?Read the answer and worked solution →Which is a difference between a mixture and a compound?Read the answer and worked solution →One juice has 1 spoon of sugar, another has 3. Both are mixtures. Why?Read the answer and worked solution →Oil and water shaken together soon separate into layers. These two liquids are called what?Read the answer and worked solution →Ethanol mixes with water in any amount without limit. Such liquids are called what?Read the answer and worked solution →What is a saturated solution?Read the answer and worked solution →Riya adds spoons of sugar to water until some sugar stays at the bottom. The liquid is now what?Read the answer and worked solution →Which helps a cup of water dissolve more sugar?Read the answer and worked solution →A cold and a warm bottle of fizzy drink are opened. Which holds more dissolved gas before opening?Read the answer and worked solution →Why might fish struggle when a pond becomes very warm?Read the answer and worked solution →Which dissolves fastest in a glass of water?Read the answer and worked solution →The rule "like dissolves like" says a solute dissolves best in a solvent that is what?Read the answer and worked solution →Why is sea water salty?Read the answer and worked solution →

Worked practice questions

Which statement best describes matter?

  1. Anything that gives out heat or light
  2. Anything that has mass and takes up space
  3. Anything that we can see with our eyes
  4. Anything that is able to move on its own
Show answer and solution

Correct answer: B. Anything that has mass and takes up space

Matter is defined by having mass and occupying space, whether or not we can see it or it moves.

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Why do we count air as matter even though we cannot see it?

  1. It is very light to carry
  2. It moves from place to place
  3. It is a form of heat energy
  4. It has mass and takes up space
Show answer and solution

Correct answer: D. It has mass and takes up space

Air has mass and fills space, which is the test for matter, so being invisible does not matter.

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Which of these has no mass and is therefore not matter?

  1. Light from a torch
  2. Water in a glass
  3. Air inside a tyre
  4. A wooden ruler
Show answer and solution

Correct answer: A. Light from a torch

Light is made of photons, which have no mass, so it is not matter, while the other three have mass.

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