Grade 4 Science Third Quarter Exam Review Questions

What happens when opposite poles of two magnets are brought together?

• They repel each other

• They attract each other

• They cancel each other

• Nothing happens

What type of energy is stored in an object and has the potential to do work?

• Energy in motion

• Stored energy

• Energy from sound waves

• Energy that cannot change

Why do sound waves travel faster in solids than in gases?

• Solids have tightly packed molecules, allowing vibrations to transfer more quickly.

• Gases are too light to carry sound waves effectively.

• Solids generate their own sound waves, making transmission faster.

• Sound waves lose energy in gases due to reflection.

Which method of heat transfer occurs through direct contact?

• Convection

• Radiation

• Conduction

• Evaporation

What does SONAR stand for?

• Sound and Navigation Area Radar

• Sound Navigation and Ranging

• System for Navigation and Resources

• Submarine Observation and Radar

What do we call the bending of light when it passes through different materials?

• Reflection

• Refraction

• Radiation

• Absorption

Which of the following is an example of how friction is useful in everyday life?

• A car coming to a stop when brakes are applied

• A ball rolling faster down a smooth slope than on grass

• Heat transferring through direct contact with a frying pan

• Solar panels converting sunlight into electricity

What is the term for living organisms that produce their own light?

• Reflection

• Bioluminescence

• Heat conversion

• Photosynthesis

How does a prism separate white light into different colors?

• The prism absorbs white light and releases it as colors.

• The prism reflects light into different colors.

• The prism refracts light, bending each wavelength at a different angle.

• The prism magnifies light and enhances its colors.

What type of light source is the sun?

• Artificial

• Natural

• Chemical

• Man-made