8th Science Review #1

A habitat is home to a tangle of food chains called ___

• a nutrient hub

• an energy chain

• a food web

• the carbon cycle

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The interaction of living and non-living things in a habitat is called ___

• an environment
• an ecosystem
• a food web
• a food chain

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Leopards dine on ___

• figs and spider monkeys
• sloths and strangler figs
• sloths and spider monkeys
• ants and bats

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What is a producer?

• an organism that gets energy from eating other organisms
• an organisms that uses sunlight to make its own food
• an organism that gets energy from eating dead organisms, non-living material or waste
• an organism that uses chemical energy to make its own food

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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.

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A copper penny turning greenish after a few years is an example of ...

• Chemical Change
• Physical Change

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To go back to the substances original states is not possible or you would need to use chemicals. 

• Chemical
• Physical

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A change in matter that forms one or more new substances with new chemical properties is a/an...

• Physical Change
• Chemical Change

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Which Law states that Matter cannot be created or destroyed during a Chemical Change/Reaction?

• Conservation of Energy
• Conservation of Matter (Mass)
• Conservation of Momentum
• Conservation of Thermodynamics

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The diagram below shows changes happening to water in a specially shaped bottle.
What changes did the water undergo?

• melting and then freezing
• freezing and then evaporation
• condensation and then melting
• evaporation and then condensation

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