1. What are cells?

2.  Building blocks of living things  Let’s name some living things:  people, plants, animals, bacteria  Cells provide structure, convert nutrients to energy, and carry out specialized functions.  Your body is made of trillions of cells. Muscle cells help you move, stomach cells help you digest your lunch, and skin cells cover your whole body!

3. What do cells look like? Animal cellsPlant cells Cell Structure http://www.glogster.com/amsgirl/shrock1-plant-animal-cell/g-6lunn7f8fjsc4kg7g50nsa0

4. What do cells look like? Animal cellsPlant cells Let’s make our own cell models! Cell Structure http://www.oncoursesystems.com/school/webpage/10845583/7883070

5. Making animal cell and plant cell models Video https://www.youtube.com/watch?v=IDX9JOUskuA Click for a link to a tutorial!

6. How can stuff get in and out of cells? Passive  Oxygen, carbon dioxide and water pass through tiny holes in the cell membrane from high concentration to lower concentration  Called diffusion for gases, or osmosis for water  Let’s explore diffusion! Transport http://www.biology4kids.com/files/cell2_passivetran.html

7. Diffusion through a cell membrane Diffusion through a cell membrane Remember, an egg is a really big single cell! Video https://www.youtube.com/watch?v=rFls3g8v6fo Click for a link to a tutorial!

8. How can stuff get in and out of cells? Active  Larger molecules need help to pass through the cell membrane  They can move one molecule at a time, or in bigger chunks  Requires energy Transport http://www.biology4kids.com/files/cell2_activetran.html http://www.sophia.org/concepts/endocytosis-and-exocytosis

9. How can cells move?  Some crawl (video 1 video 2)video 1video 2  make new attachments at the front  release attachments from the back  contract cell body to bring cell forward  Let’s explore how cells move by playing with toy water snakes! Movement https://www.youtube.com/watch?v=JnlULOjUhSQ http://www.microscopyu.com/moviegallery/livecellimaging/mdbk/index.html Click for a link to a video clip!

10. How can cells move?  Some swim (video 1 video 2)video 1 video 2  Cilia or flagella on cell body move back and forth or around like a propeller to produce movement  Can you think of other ways cells might move? Video https://www.youtube.com/watch?v=HXcEACQv5-8 https://www.youtube.com/watch?v=jl0TzaWUQWk

11. Can you think of things other than cells that move in similar ways? Video Click for a link to a video clip!

12. Let’s cell-ebrate what we’ve learned! We know…  the parts of the cell  how water and other materials move in and out of cells  how cells move