7.2 Making Science Work Vocabulary

Match each vocabulary word to the correct definition. Write the letter of the correct definition next to each word.

• Device

• A machine that produces electricity.

• Hydroelectric

• A machine or tool used for a specific purpose.

• Propeller

• A system that produces electricity using moving water.

• Inventor

• A person who creates new things or ideas.

• Generator

• A large wheel with blades that moves when water or air pushes it, used to create energy.

Complete the sentences using the correct vocabulary word. 1. The Wright brothers were famous _______________ who designed and built the first airplane.

• Inventors

• Pilots

• Engineers

• Scientists

Complete the sentences using the correct vocabulary word. 2. A _______________ produces electricity by using the movement of wind, water, or steam.

• Generator

• Battery

• Transformer

• Conductor

Complete the sentences using the correct vocabulary word. 3. The engineer tested the _______________ of the new windmill before building the final version.

• Prototype

• Durability

• Efficiency

• Design

Complete the sentences using the correct vocabulary word. 4. A _______________ is used to push air or water and make a vehicle move forward.

• Propeller

• Anchor

• Rudder

• Sail

Complete the sentences using the correct vocabulary word. 5. A _______________ dam uses flowing water to generate power for homes and businesses.

• Hydroelectric

• Nuclear

• Solar

• Wind

Complete the sentences using the correct vocabulary word. 6. The _______________ studied how to make solar panels more efficient.

• Scientist

• Engineer

• Artist

• Teacher

Complete the sentences using the correct vocabulary word. 7. A _______________ is any object or tool designed for a specific task, like a phone or a flashlight.

• Device

• Animal

• Vehicle

• Building

Complete the sentences using the correct vocabulary word. 8. A _______________ converts moving water, wind, or steam into mechanical energy.

• Turbine

• Generator

• Engine

• Pump

Match the words to their definitions:

• A person who creates new devices or processes

• Propeller

• Relating to the generation of electricity using water

• Hydroelectric

• A machine that converts energy into mechanical power

• Inventor

• A machine that produces electricity

• Device

• A mechanical device with blades that creates thrust

• Generator