6th Grade Science Year Review

The sun heating the Earths surface unevenly causes

• rain
• wind
• gravity
• solar flares

The protective layer of ozone gas is located in which layer of Earth’s atmosphere?

• mesosphere
• troposphere
• stratosphere
•  thermosphere

Which best describes what happens to air pressure as altitude increases in the atmosphere?

•  Air pressure becomes less.
• Air pressure becomes greater.
• Air pressure changes
• Air pressure stays the same

The way energy is passed from one organism to another

• food chain
• energy
• extinct
• habitat

Which one is NOT an example of a decomposer?

• mushroom
• leaves
• mold
• worm

The arrows in a food chain or web represents what?

• They point to the organism that is being eaten.
• It shows how sunlight flows within an ecosystem.
• They show what direction the energy is flowing between organisms. 
• They represent how water is transferred within a habitat.

_______ factors are all living things located within an ecosystem.

• biotic
• abitotic
• biome
• niche

What are all members of one kind of organism that live in a particular area?

• population
• microrganisms
• community
• environment

The deer and the rabbit living together make up a

• community
• population
• biosphere
• food web

What is the first place energy starts in a food chain?

• plants
• sun
• animals
• carnivores