Exploring Basic Science Concepts

What are the three states of matter?

• gas, liquid, crystal

• plasma, vapor, foam

• solid, liquid, gas

• solid, liquid, plasma

Which state of matter has a definite shape and volume?

• Plasma

• Solid

• Liquid

• Gas

What is a simple machine?

• A simple machine is a type of computer.

• A simple machine is a device that helps make work easier by changing the direction or magnitude of a force.

• A simple machine is a device that requires electricity to operate.

• A simple machine is a complex tool used in engineering.

Name one type of simple machine.

• pulley

• screw

• wheel

• lever

What is the purpose of a lever?

• The purpose of a lever is to amplify force to lift or move heavy objects.

• To serve as a decorative piece in furniture.

• To provide a stable base for construction.

• To create electrical energy from motion.

How does a pulley work?

• A pulley functions by creating a vacuum to lift items easily.

• A pulley works by using a wheel and rope to change the direction of force, making it easier to lift loads.

• A pulley uses gears to increase speed when lifting loads.

• A pulley operates by using magnets to attract heavy objects.

What is the difference between weather and climate?

• Weather changes every season; climate remains constant throughout the year.

• Weather is short-term; climate is long-term.

• Weather is always rainy; climate is always sunny.

• Weather refers to the average temperature; climate refers to daily conditions.

What instrument is used to measure temperature?

• Voltmeter

• Anemometer

• Barometer

• Thermometer

What are the main components of the water cycle?

• Evaporation, condensation, precipitation, collection

• Collection, absorption, evaporation, filtration

• Condensation, filtration, evaporation, runoff

• Filtration, absorption, evaporation, storage

What is the role of the sun in weather?

• The sun only affects the temperature of the oceans.

• The sun cools the Earth, reducing weather patterns.

• The sun has no impact on weather changes.

• The sun drives weather by providing energy that heats the Earth, causing air movement and water evaporation.