Science 8 Review Questions

What kind of energy transformation occurs in a flashlight?

• Electric to thermal

• Light to chemical

• Mechanical to heat

• Chemical to light

A red object appears red because it...

• Absorbs red light

• Reflects all colors

• Blocks all light

• Reflects red light

What happens to light when it moves from air into water?

• It reflects

• It stops

• It gets absorbed

• It refracts

What type of lens would correct farsightedness?

• Concave

• Flat

• Reflective

• Convex

Which part of the Earth contains the most water?

• Glaciers

• Groundwater

• Rivers and lakes

• Oceans

What part of a plant cell captures sunlight for photosynthesis?

• Vacuole

• Nucleus

• Mitochondria

• Chloroplast

What is the name for a mixture that looks uniform throughout?

• Homogeneous

• Heterogeneous

• Compound

• Element

What tissue type is responsible for sending signals in the body?

• Muscle

• Epithelial

• Connective

• Nerve

Which part of the eye controls how much light enters?

• Retina

• Lens

• Optic nerve

• Pupil

What is the part of a solution that dissolves another substance?

• Solute

• Mixture

• Compound

• Solvent