8th Grade Science

1
8th Grade Science
Do Now
Monday, April 15, 2013
Organize these words in order from smallest to
largest  atom, subatomic particle, molecule,
cell, ecosystem, organelle, tissue, organ
system, organism, population, organ Do NOT
put Do Now back in table folder today we are
about to change seats!
2
8th Grade Science
Todays Schedule
Monday, April 15, 2013

1. Do Now
2. Parts of a Cell Overview
3. A cell is like a.

Pre-AP Grade-Level
HW due Friday HW due Friday
STAAR Test next Wednesday STAAR Test next Wednesday
Essential Question
Vocabulary
3
8th Grade Science
Today we will
Monday, April 15, 2013
7.12 (C) recognize levels of organization in
plants and animals, including cells, tissues,
organs, organ systems, and organisms 7.12
(D) differentiate between structure and function
in plant and animal cell organelles, including
cell membrane, cell wall, nucleus, cytoplasm,
mitochondrion, chloroplast, and vacuole 7.12
(F) recognize that according to cell theory all
organisms are composed of cells and cells carry
on similar functions such as extracting energy
from food to sustain life.
4
Two Classifications of Cells

• Prokaryotic Cells
• 1st form of life
• Have NO nucleus DNA is free (called the
  nucleloid)
• ONLY form Unicellular organisms (one-celled)
• Example Bacteria (e. coli, staph, salmonella)

• Eukaryotic Cells
• Evolved from prokaryotes
• Have a nucleus with bundled DNA
• Can form unicellular or multi-cellular organisms.
• Example Amoebas, plants animals, fungi, protists

Note There many TYPES of cells (skin, muscle,
hair, sex, etc.,) these are the two categories
that ALL cells fall under! It is the DNA within
cells that controls what type of cell they will
be.
5
(No Transcript)
6
Cell Organelles
Organelle Function Cell Membrane Outer cell
lining for protection Cytoplasm Jelly-like
liquid that organelles float in Nucleus
Control center that contains organisms
DNA DNA The hereditary material of
organisms Vacuoles Store nutrients and waste
Mitochondria Jelly-bean shaped producers of
energy (ATP) for cell
7
Plant Organelles

• PLANT-SPECIFIC organelles
• Cell Wall Gives plant cells shape and structure
  (rigidity), made of cellulose
• Chloroplast Site where photosynthesis in plant
  cells occurs
• Large central vacuole Stores waste and water
• EVALUATE
• What are some similarities between plant and
  animal cells?
• What do you notice about the vacuole of the plant
  cell?
• Why do you think plants evolved to have cell
  walls and animals did not?

8
8th Grade Science
Parts of a Cell
Monday, April 15, 2013
9
8th Grade Science
A cell is like a
Monday, April 15, 2013
Draw and label an analogy of the cell to
something you are familiar with. Possibilities
a school, an airport, a factory, a mall, the
solar system, etc. Example In a grocery store,
the sliding doors are like the cell membrane
because it decides what goes in and out of the
store. The shelves are like the vacuoles because
they store materials. The workers are like the
mitochondria because they are the energy of the
cell, and the store manager is like the nucleus
because they tell the store and the people in it
what to do.
10
8th Grade Science
Do Now
Tuesday, April 16, 2013

• For the topographic maps below,
• Identify the landform shown.
• Explain which one you think would be the easiest
  to climb and why.

Y
X
11
8th Grade Science
Do Now
Tuesday, April 16, 2013
12
8th Grade Science
Todays Schedule
Tuesday, April 16, 2013

1. Do Now
2. Go over Force Motion Unit Test
3. Finish A Cell is Like A.

Pre-AP Grade-Level
HW due Friday HW due Friday
STAAR Test next Wednesday STAAR Test next Wednesday
Essential Question
Vocabulary
13
8th Grade Science
Today we will
Tuesday, April 16, 2013
7.12 (C) recognize levels of organization in
plants and animals, including cells, tissues,
organs, organ systems, and organisms Review
8.6A-C Force and Motion
14
8th Grade Science
Force Motion Unit Test
Tuesday, April 16, 2013

• Mark incorrect answers on answer key
• Questions?
• Corrections due by MONDAY

15
8th Grade Science
A Cell Is Like A
Tuesday, April 16, 2013

• Finish A Cell Is Like A

16
8th Grade Science
Do Now
Wednesday Thursday, April 17 18, 2013
What is the difference between the a spring tide
and a neap tide? Draw a picture of each
including the positions of the sun, earth, and
moon.
17
8th Grade Science
Todays Schedule
Wednesday Thursday, April 17 18, 2013

1. Do Now
2. Body Systems Video/Card Sort/Video
3. Body Systems Rally Table
4. Body Systems Final Jeopardy
5. Conduction, Convection, Radiation at
   Schlitterbahn
6. Weather Maps

Pre-AP Grade-Level
HW due Friday HW due Friday
STAAR Test next Wednesday STAAR Test next Wednesday
Essential Question
Vocabulary
18
8th Grade Science
Today we will
Wednesday Thursday, April 17 18, 2013
7.12(B) identify the main functions of the
systems of the human organism, including the
circulatory, respiratory, skeletal, muscular,
digestive, excretory, reproductive,
integumentary, nervous, and endocrine
systems 8.10(A) recognize that the Sun provides
the energy that drives convection within the
atmosphere and oceans, producing winds and ocean
currents (B) identify how global patterns of
atmospheric movement influence local weather
using weather maps that show high and low
pressures and fronts 6.(9) Force, motion, and
energy. The student knows that the Law of
Conservation of Energy states that energy can
neither be created nor destroyed, it just changes
form. The student is expected to (A) investigate
methods of thermal energy transfer, including
conduction, convection, and radiation (B) verify
through investigations that thermal energy moves
in a predictable pattern from warmer to cooler
until all the substances attain the same
temperature such as an ice cube melting
19
8th Grade Science
Body Systems
Wednesday Thursday, April 17 18, 2013

• Human Body Systems - Musical Review
• Circulatory - Excretory
• Respiratory - Reproductive
• Skeletal - Integumentary
• Muscular - Nervous
• Digestive - Endocrine

20
8th Grade Science
Body Systems Card Match
Wednesday Thursday, April 17 18, 2013
With your table, match --Body system
name --Description of system --Examples of organs
in the system
21
8th Grade Science
Body Systems Card Match
Wednesday Thursday, April 17 18, 2013
Skeletal System Supports the body works with muscles for movement, produces red blood cells.   Bones, cartilage  
Circulatory System Carries materials to the bodys cells. Takes away wastes. Works with Respiratory System.   Heart, veins, arteries, capillaries  
Muscular System Helps the body to move helps push materials through the body. Works with Skeletal System.   Muscles, tendons, muscles in organs  
Respiratory System Puts oxygen into the body and removes carbon dioxide. Works with the Circulatory System.   Lungs, nasal passages, trachea, bronchi  
Excretory System Removes wastes from the body           Kidneys, bladder, urethra, lungs, skin, large intestine
22
8th Grade Science
Body Systems Card Match
Wednesday Thursday, April 17 18, 2013
DIGESTIVE SYSTEM   Takes food and breaks it down into nutrients the body needs.   Mouth, salivary glands, esophagus, stomach, small large intestines  
REPRODUCTIVE SYSTEM   Produces sex cells to create children, controls female male characteristics.   Female male genitals, hormone glands  
NERVOUS SYSTEM   Controls all body functions, senses and recognizes information from in and outside the body.   Brain, spinal cord, nerves  
SKIN SYSTEM   First barrier to disease and the environment controls body temperature, keeps body fluids inside body.   Skin, sweat glands  
IMMUNE SYSTEM   Fights off diseases Lymph nodes, white blood cells, skin
23
8th Grade Science
Rally Table
Wednesday Thursday, April 17 18, 2013
In your journal on page 62 choose ONE body
system and describe using 2-3 complete
sentences -Function -Example organs
24
8th Grade Science
Rally Table Part 2
Wednesday Thursday, April 17 18, 2013
Rotate your journal clockwise around your
table. In your new journal, add to your
classmates journal entry. Choose a different
body system and explain how it works with the
body system that was described by your classmate.
25
8th Grade Science
Rally Table Part 3
Wednesday Thursday, April 17 18, 2013
Rotate your journal clockwise around your
table. In your new journal, add to your
classmates journal entry. Using the previous
two descriptions, predict what would happen if a
different body system stopped functioning. Why
would it affect the other two systems? How would
it affect the other two systems?
26
8th Grade Science
BrainPop
Wednesday Thursday, April 17 18, 2013
BrainPop The Human Body
27
8th Grade Science
Body Systems Final Jeopardy
Wednesday Thursday, April 17 18, 2013
Human Body Final Jeopardy --Write 1 question for
your classmates to answer on an index card. --5
questions will be chosen randomly for 5 random
people (popsicle sticks) --If you miss your
question, someone can steal for your prize
(popsicle sticks) --If no one can answer your
question, you get a prize
28
8th Grade Science
BRAIN BREAK
Wednesday Thursday, April 17 18, 2013
One day during cooking class, the teacher, Mrs.
Jones, was revealing her secrets for preparing
perfect sauces. When she ordered us to the stoves
to prepare our assignments, she said, Now dont
forget to use wooden spoons. As I stirred my
sauce, I contemplated the physics behind the
mystery of the wooden spoon and decided it must
have something to do with heat conduction. I
approached Mrs. Jones to test my theory. Why
wooden spoons? I asked. Do you know why Mrs.
Jones wanted the class to use a wooden spoon?
29
8th Grade Science
BRAIN BREAK
Wednesday Thursday, April 17 18, 2013
Because, she replied, if I have to sit here
listening to all your metal spoons banging
against metal pots, Id go nuts! ?
30
8th Grade Science
Schlitterbahn!! page 63
Wednesday Thursday, April 17 18, 2013

• Schlitterbahn Opens Longest Waterpark Ride in the
  World
• Look for examples of.
• Conduction
• Convection
• Radiation

31
8th Grade Science
Energy
Wednesday Thursday, April 17 18, 2013
Using the cheer conduction, convection,
radiation Write an example of each.
32
8th Grade Science
Energy
Wednesday Thursday, April 17 18, 2013
As a table group, create an example that
demonstrates either conduction, convection, or
radiation. Possible examples skit with a
script, childrens book, advertisement, etc.
33
8th Grade Science
Weather Maps
Wednesday Thursday, April 17 18, 2013
Warm Front Cold Front Stationary Front High
Pressure Low Pressure
34
8th Grade Science
Weather Maps
Wednesday Thursday, April 17 18, 2013
35
8th Grade Science
Weather Maps
Wednesday Thursday, April 17 18, 2013
36
8th Grade Science
Weather Maps
Wednesday Thursday, April 17 18, 2013
37
8th Grade Science
Weather Maps
Wednesday Thursday, April 17 18, 2013
38
8th Grade Science
Do Now
Friday, April 19, 2013
Describe how convection drives the movement of
tectonic plates.
39
8th Grade Science
Todays Schedule
Friday, April 19, 2013

1. Do Now
2. AC HELMS
3. Flashlight example of energy transfer
4. Energy Transformations

Pre-AP Grade-Level
HW due today HW due today
STAAR Test next Wednesday STAAR Test next Wednesday
Essential Question
Vocabulary
40
8th Grade Science
Today we will
Friday, April 19, 2013
6.9 (C) demonstrate energy transformations such
as energy in a flashlight battery changes from
chemical energy to electrical energy to light
energy. 7.5 (A) recognize that radiant energy
from the Sun is transformed into chemical energy
through the process of photosynthesis
41
8th Grade Science
AC HELMS
Friday, April 19, 2013
AC HELMS
42
8th Grade Science
Flashlight
Friday, April 19, 2013
Flashlight example of energy transfer
43
8th Grade Science
Energy Transformations
Friday, April 19, 2013

1. Choose two types of energy
2. Create a cartoon showing how that form of energy
   forms into another with 3 energy transformations
   in between