Start learning →

Olympiad (Class 4) Plants — practice questions — page 2

Explore 47 free Plants questions in Olympiad (Class 4) Science. Open each question or exercise to read its content, reference answers and available explanation.

Practise Plants with Quill →

Plants questions and exercises with answers

Showing questions 31–47 of 47.

Which one of these affects how well a plant grows?Read the answer and worked solution →A cold night with frost can do what to many plants?Read the answer and worked solution →Rice and wheat are plants we eat as staple food. What group are they?Read the answer and worked solution →People eat many kinds of food. Where does most of it come from in the end?Read the answer and worked solution →About 7,000 plant kinds have been used as food. Most of today's food comes from how many?Read the answer and worked solution →Aspirin is a medicine that first came from plants. What does this show?Read the answer and worked solution →A sweet potato is dug up from the ground. Which part of the plant is it?Read the answer and worked solution →Ravi pulls a weed and sees one long main root with small side roots. What kind is the weed?Read the answer and worked solution →Deep roots help a plant in dry weather because they can do what?Read the answer and worked solution →Which job is done by both roots and stems of a plant?Read the answer and worked solution →Maize has extra roots near the base of its stem for support. What are they called?Read the answer and worked solution →Which plant part would a gardener cut to grow a new plant without using seeds?Read the answer and worked solution →An onion is a bulb. Which kind of part is it?Read the answer and worked solution →Plants and animals both need oxygen. Which of them also give oxygen to the air?Read the answer and worked solution →Which part of the plant gives the most support to hold up leaves and flowers?Read the answer and worked solution →A plant cell has a big space filled with water. What is it called?Read the answer and worked solution →Why does a plant in a sunny window grow better than one in a closet?Read the answer and worked solution →

Worked practice questions

Which one of these affects how well a plant grows?

  1. Colour of a bag
  2. Song on a radio
  3. Name of the pot
  4. Light and water
Show answer and solution

Correct answer: D. Light and water

Temperature, water, light, carbon dioxide and soil nutrients all affect plant growth.

Open this question →

A cold night with frost can do what to many plants?

  1. Make them taller
  2. Damage or kill them
  3. Make them sweeter
  4. Make them fly
Show answer and solution

Correct answer: B. Damage or kill them

Frost and dehydration can damage or kill plants.

Open this question →

Rice and wheat are plants we eat as staple food. What group are they?

  1. Medicines
  2. Cereals
  3. Spices only
  4. Timber
Show answer and solution

Correct answer: B. Cereals

Rice and wheat are cereals, major staple foods for people.

Open this question →

How to practise

  1. Choose a Plants question and try to work out your answer.
  2. Open the question to check the correct answer and read its worked solution.
  3. Continue in the app for bite-sized lessons, explanations and review with Quill. You can start without creating an account.

Put it into practice

Continue with Plants practice for Olympiad (Class 4). Read explanations as you go. No signup form needed to start.

Practise Plants →

More Science topics

Force, work and energyFood and DigestionEarth and UniverseHuman NeedsAnimalsOur EnvironmentMatter and Materials