September 14, Science 7 - Interactions and Ecosystems Introduction. Planet Earth Video - great plains. Video - Ecosystem - Factors -
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1 September 14, 2015 Planet Earth Video - great plains
2 What is an ecosystem? Pull Any place on Earth where living things interact with other living things and non-living things. Ecosystems can be as small as a puddle or as large as an ocean. StudyJam video
3 September 14, 2015 What do you see in this ecosystem? video link
4 Ecosystems involve the interaction between the living and non-living. List some living and non-living things you might find in an ecosystem, in the chart. Living Non-living
5 Make a list of all the biotic and abiotic things in our classroom Biotic Abiotic Video
6 The NEEDS of living things What do organisms need to survive? What are basic needs?
7 1. Living things need water 75% of the Earth's surface is water 90% of a head of lettuce is water 67% of your body is water Humans can live for approximately 3 days without water Water is essential for all life on Earth
8 2. Living things need food We get nutrients from food Nutrients are carbohydrates, fats, proteins, vitamins and minerals Nutrients allow you to grow, move and repair and maintain the cells in your body
9 3. Living things need energy You need energy to walk, run, breathe, eat, digest, grow blink your eyes, beat your heart... You need energy when you sleep! Energy comes from processing the foods we eat and breaking them down into nutrients
10 4. Living things need oxygen Oxygen is used to breakdown the food we eat into nutrients. Oxygen is needed in the muscles of your body All living things need oxygen - though plants and fungus (mushrooms) don't need as much as animals v
11 5. Living things need suitable living conditions Life exists all over the planet from the depths of the ocean to the top of the tallest trees. Organisms are adapted to living in all climates including those most harsh - bacteria can live in water 400C. Others can live in -90C conditions. Most living things build shelters to protect them from the harsh conditions
12 What nutrients are essential for our survival? September 14, 2015
13 Niche A niche is the role or job an organism has in an ecosystem. Ex) a dragonfly's niche includes it eating mosquitos
14 A species is a group of similar organisms that can reproduce. A population is a group of species living in the same space. A community is a group of populations living together. An ecosystem is an area where a community interacts with each other and the physical world around them (abiotic factors).
15 Sort into categories. Species Population Community Moose Ant Grizzly Bear Grasshopper Dragonfly Herd of Elk School of Fish Pack of Wolves Flock of Birds Pond Prairies Label Label
16 September 14, 2015 What are the levels of organization? community when more than one population occupies an area ecosystem all populations and abiotic factors in an area biosphere all of the Earth's ecosystems Directions population a group of organisms of the same type Drag w definitio
17 Activity - Use the list we just made on classroom biotic and abiotic factors. Then draw a line between all the things that interact with each other. Here is an example - textbook page 10.
18
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