7A, 7C, 7F Science: Interactions with Environment

Grade 7 Science: Ecosystem: Chapter 4, Unit B, page 88 to 116

- there will be a test after this unit

 Let's start with:

- what is living? Watch the 3 videos below

1) Limited Life Span (find out the life span of a fruit fly and a red wood)

2) Metabolism (take in food, use energy, get rid of waste)

         - teens have higher metabolic rate than adults

         - after age 55, adults have lower rate

3) Growth

         - get taller and bigger to an extend (you cannot be 3m tall)

         - more cells in body

4) Reproduction

         - without this, living organisms will extinct

         - plants reproduce asexually (rely of insects or wind to spread pollen)

5) Compose of cells

         - cells = basic building block of life

6) Locomotion

         - how do plants move?  Check this out

https://www.youtube.com/watch?v=icPv3kY_JDg

https://www.youtube.com/watch?v=riR6rGqtPZI

7) Adaptation to the environment

https://www.youtube.com/watch?v=IupmbuvRGKQ