Ecosystem Test 1

What is a model used for? (more than one answer)

• A scientist tool

• to answer questions about the real world

• toy models

• to play with and have fun

Food web

• fish, crab and shark

• evidence of how animals get matter

• a web of spiders and other animals

• A diagram that shows what eats what in an ecosystem

What does Restoration mean?

• The process of returning something to its original condition

• plants in the ecosystem

• To fix something or repair the damage

• make something pretty

Nitrogen in the atmosphere can be toxic but for plants it is...

• For the water cycle to happen

• essential for Earth

• Food and water for plants

• An essential nutrients for the production of amino acids, proteins and nucleic acids

Nutrients are important because,

• with out nutrients the soil becomes healthier

• It helps us grow and get muscles

• Animals and plants use them to help them grow

• Earth needs it to survive

Why is evidence important?

• To make sure scientist can have arguments

• it is information that supports an answer to a question

• evidence is a strong opinion

• it gives is the chance to make observations

what is a claim?

• facts and information that we know are true

• the answers to a problem

• what we argue about in the playground

• Proposed answers to a problem

The purpose of pesticides are to...

• kill organisms that can harm people

• make plants an grass grow

• it is food for plants

• create a healthy ecosystem

Matter is what?

• energy in the ecosystem

• the food that animals need to run fast

• what thing are made of

• water and light

an explanation of how something works, or the truth about

some aspect of the world is a?

• point of view

• evidence

• Is a Scientific Idea

• claim