Cycles of Matter in Ecosystems

Nitrogen Cycle

100

What is nitrogen? Give 1-2 facts about it.

Nitrogen is a gas.

It is vital for building human bodies, animals and plants.

It makes up 78% of Earth's atmosphere.

200

What do Oxygen and Nitrogen have in common?

Give 1-2 similarities.

Give 1-2 differences.

Similarities (4): N and O are both invisible, colorless, tasteless gasses.

Differences: 1. Humans can use O directly from the air, but N needs to be fixed (usually by bacteria). 2. Oxygen helps burning, but Nitrogen supresses burning.

300

Give 3 examples of how we use Nitrogen in every day life.

In medicines, light bulbs, in chips' bags, in tires, and in cutting metals. We also use it in oil, automotive, and aerospace industries.

400

Give 3-4  adjectives (descibing words) for nitrogen gas?

Colorless

Invisible

Transparent

Tasteless

Silent

Vital

500

Describe the main stages of the Nitrogen Cycle:

Water Cycle

100

What makes water from the lake turn into vapor and rise?

The sun's energy.

200

Fill in the blanks:

 _________ occurs when a gas changes into a liquid.

Condensation

300

Give 2-3 examples of precipitation.

Rain

Snow

Hail

Sleet

400

Fill in the blanks:

When the water vapor leaves the plant's leaves through stomata, the process is called ________.

Transpiration

500

Name 4 main parts of the water cycle.

Use the sentence stem:

----, ------, -------, and------ are the four main parts of the water cycle.

Evaporation

Condensation

Presipitation

Infiltration

Transpiration

Collection

Matter

100

Give 3 examples of matter.

Any three objects:

Pencil

Desk

Student

200

What states of matter do you know?

Solid

Gas

Liquid

300

Name 3 states of of water.

Liquid - rain

Solid - ice

Gas - fog

400

Give 2-3 facts about matter.

Matter can't disappear, but it can change a form or state.

Matter is everywhere.

It has 3 states: solid, liquid, gas

500

Give a definition of matter.

Matter is anything that has a mass and takes up a space.

Earth's Systems

100

Name 4 Earth's systems.

Atmosphere

Geosphere

Hydrosphere

Biosphere

200

Name Earth's systems that you can see in this picture:

Biosphere

Hydrosphere

Geosphere

Atmosphere

300

Fill in the blanks: This picture illustrates that all Earth's systems are _______________.

Connected

Interdependent

400

Give an example of abiotic factor in hydrosphere, geosphere, and atmosphere.

water, rock, vapor

500

Give 3 examples of biotic factors in the biosphere.

Animals

Humans

Plants

Food Chain

100

What  does this diagramm illustrate?

Food chain

200

Who is the predator and who is the prey?

Butterfly-prey

Snake-predator

300

What is a food chain?

A food chain is the order in which organisms, or living things, depend on each other for food.

400

This food chain is missing one type of organisms.   Name the missing part of the food chain. Name the roles of each participant in this chain.

Grass-producer (produce food).

Butterfly, Frog, Snake-consumers (eat producers and lower level consumers, pass the nutrients and energy on).

Decomposers - is the missing part. They break down the dead producers and consumers back into nutrients. 

500

Tell us about this food chain. Name producer, primary and secondary consumers, decomposers, and their roles.

Plants are producers. They make food. Deer is a primary consumer. It eats plants. Wolf is a secondary consumer, it eats the deer and gets the nutrients from the plans. Mashrooms are decomposers. They break dead bodies down into nutrients.