Main Idea and Key Details Quiz

What is the main idea of a story about a boy who learns to ride a bike after many tries?

• The boy fell off his bike many times.

• The boy's bike is red.

• The boy learns perseverance through practice.

• The boy's friend also knows how to ride a bike.

Which of the following is a detail that supports the main idea that gardening is a rewarding hobby?

• You need to water plants regularly.

• Gardening requires a lot of tools.

• Many people enjoy outdoor activities.

• Plants can be expensive.

What is the difference between a main idea and a detail?

• A main idea is the topic of a text, while a detail is information that supports the main idea.

• A main idea can be found in the conclusion only.

• Details are more important than the main idea.

• There is no difference; they mean the same thing.

Identify the main idea in the following sentence: "Dinosaurs lived millions of years ago and varied greatly in size and shape."

• Dinosaurs are extinct.

• Dinosaurs lived millions of years ago.

• Dinosaurs varied greatly in size and shape.

• Dinosaurs lived millions of years ago and varied greatly in size and shape.

Which of the following is a key detail if the main idea is about the importance of eating breakfast?

• Breakfast is the first meal of the day.

• Eating breakfast can help improve concentration.

• Lunch is usually eaten after breakfast.

• There are many types of cereal.

Choose the sentence that best supports the main idea: "Recycling helps protect the environment."

• Recycling bins are blue.

• Many people recycle paper and plastic.

• Recycling reduces the need for new raw materials.

• You can recycle once a week.

What is the main idea of a paragraph that describes how a caterpillar becomes a butterfly?

• Caterpillars eat a lot of leaves.

• The process of a caterpillar turning into a butterfly is called metamorphosis.

• Butterflies can fly.

• Caterpillars are small.

Which of the following is NOT a detail that supports the main idea that exercise is beneficial for health?

• Exercise can help you lose weight.

• Regular exercise can improve your mood.

• Exercise requires expensive equipment.

• Exercise can increase your energy levels.