Plant and animal Cells Study Guide

Parents,
  We make our edible plant and animal cells today!  The room was both messy and full of a sweet scent!  Your child will be tested on the organelles this Friday. Please encourage them to study.

Aniamal Cells
-Vaculoes: bubblelike storage structure that store water
-Lysosomes- digest large particles
-Ribosomes- structures that make proteins
-Golgi Complex- area that stores ad packages chemicals
-Cytoplasm- material that is between the cell membrane and the nucleus and holds all the organells in place
-Nucleus- control center containing genetic information
-Nucleolus- Spherical body in the nucleus
-Nuclear Membrane- membrane that surrounds the nucleus
-Cell (plasma) membrane- membrane that surrounds the cell
-Mitchocondria- Releases energy from nutrients
-Smooth E.R.- Cells internal transport system
-Rough ER- ER with ribosomes attached to it
-Centriole- Small, dark body outside nucleus used during cell division and also helps keep the cell up.

Plant Cells- Everything like animal cells except- lysosomes and centrioles.
- Chloroplast- in charge of cellular respiration and gives the plant its green color
-Cell wall- Gives the cell its shape.

No Homework

There is no homework tonight.  Please don't forget to bring in your items for our plant and animal cell edible project.

Valentine's Day Party

Because of the Science Fair, we will have a Valentine's Day Snack this Friday.  Each child needs to bring cards and a bag of candy to class.  I would like for the students to have cupcakes and drink if at all possible.  If you are interested in helping out in this area, please send me an email by Wednesday. 

Light test study guide

Things to remember:
Magnification happens when light travels through a curved surface
White paper reflects light
Black paper absorbs light
Lenses bend light
 Infrared is closely related to heat
Speed of light is 156,000 miles/second
Concave lenses makes objects bigger
Convex lenses makes objects smaller
When focus point of light is before the retina, you are nearsided, when focus point of light is passed the retina, then you are farsided, but when the focus of light hits the retina right on point, then you have normal vision.
Light is made up of small particles call photons.
The retina is made up of photoreceptors called rods and cones.
We have about 120 million rods in our retina and they help us to detect light
We have about 6-7 million cones in our retina and they help us to detect different wavelengths of color.
Know your "Rainbow" True false sheet.

Homework

Reading- pwb page 104, write spelling words 5 times each
Math- page 261, 16-26