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Chapter ResourcesCHAPTER HOME
BACK TO CHAPTER
Content Review Review key concepts and vocabulary
Math Tutorial Review math concepts
Resource Center Get more information on select science topics
Standardized Test Practice Practice state standardized tests
Animations Link to all the McDougalLittell Science animations
Review Game Play a fun interactivereview game
Audio Readings Hear chapter audio readings
Image GalleryClick here to review chapter images and animations
Click on the items below to access resources on CLASSZONE.COM
The periodic table is a map of the elements.
SECTIONOUTLINE
metal
reactive
The periodic table has distinct regions.
7.3
CHAPTERRESOURCES
nonmetal
metalloid
radioactivity
half-lifeThree regions are metals, metalloids, and nonmetals.
VISUALIZATION
Watch how a radioactive element decays over time.
CLASSZONE.COM
Elements make up the periodic table.
SECTIONOUTLINE
periodic table
atomic mass
Elements in a period have varying properties.
Elements can be organized by similarities.
Groups of elements have similar properties.
7.2
CHAPTERRESOURCES
group
period
SECTION OUTLINE
neutron
proton
Atoms are the smallest form of elements.
electron
nucleus
atomic number
7.1
CHAPTERRESOURCES
atomic mass number
isotope
ion
All matter is made of the atoms of approximately 100 elements.
Atoms of elements contain protons, neutrons,
and electrons.
nucleus
electron cloud
neutron
proton
SIMULATION
Build a model of an atom.CLASSZONE.COM
Chapter ResourcesCHAPTER HOME
BACK TO CHAPTER
Content Review Review key concepts and vocabulary
Math Tutorial Review math concepts
Resource Center Get more information on select science topics
Standardized Test Practice Practice state standardized tests
Animations Link to all the McDougalLittell Science animations
Review Game Play a fun interactivereview game
Audio Readings Hear chapter audio readings
Image GalleryClick here to review chapter images and animations
Click on the items below to access resources on CLASSZONE.COM
SECTIONOUTLINE
Chemical reactions involve energy changes.
exothermic reaction
bond energy
endothermic reaction
• In an endothermic reaction, more energy is added than released.
• Different bonds contain different amounts of energy.• In an exothermic reaction, more energy is released than
added.
photosynthesis
9.3
VISUALIZATION
View examples of endothermic and exothermic reactions.
CHAPTERRESOURCES
Chapter ResourcesCHAPTER HOME
BACK TO CHAPTER
Content Review Review key concepts and vocabulary
Math Tutorial Review math concepts
Resource Center Get more information on select science topics
Standardized Test Practice Practice state standardized tests
Animations Link to all the McDougalLittell Science animations
Review Game Play a fun interactivereview game
Audio Readings Hear chapter audio readings
Image GalleryClick here to review chapter images and animations
Click on the items below to access resources on CLASSZONE.COM
Carbon-based molecules are life’s building blocks.
carbohydrate
SECTIONOUTLINE
lipid
protein
enzyme
nucleic acid
11.3
CHAPTERRESOURCES
There are four main types of carbon-based molecules in living things.
Carbohydrates•sugars and starches
•energy for cells
•plant cell walls
Lipids•fats and oils
•energy for cells
•cell membranes
Proteins•strings of amino acids
• used for structure, transport, immune system, enzymes
Nucleic Acids•DNA and RNA
•genetic code
•code for amino acids
Carbon-based molecules have many structures.
SECTIONOUTLINE
11.2
CHAPTERRESOURCES
inorganic compound
polymer
organic compound
isomer
Carbon can form chains and rings.
VISUALIZATION
Observe and rotate three-dimensional models of carbon-based molecules.
CLASSZONE.COM
Chapter ResourcesCHAPTER HOME
BACK TO CHAPTER
Content Review Review key concepts and vocabulary
Math Tutorial Review math concepts
Resource Center Get more information on select science topics
Standardized Test Practice Practice state standardized tests
Animations Link to all the McDougalLittell Science animations
Review Game Play a fun interactivereview game
Audio Readings Hear chapter audio readings
Image GalleryClick here to review chapter images and animations
Click on the items below to access resources on CLASSZONE.COM
Chemical bonds hold compounds together.
SECTIONOUTLINE
• Chemical bonds give all materials their structure.
• Chemical bonds between atoms involve electrons.
• Atoms can transfer electrons.
• Atoms can share electrons.
ionic bond
molecule
polar covalent bond
covalent bond
8.2
CHAPTERRESOURCES
VISUALIZATON
Examine how electrons move in a polar covalent molecule.
VISUALIZATION
Watch an animation showing ionic and covalent bonding.
CLASSZONE.COM
Earth rotates on a tilted axis and orbits the Sun.
SECTION OUTLINE
revolution
axis of rotationEarth’s rotation in sunlight causes day and night.
The changing angles of sunlight on Earth cause seasons.
season
equinox
solstice
12.2
VISUALIZATION
Find out how sunlight affects the temperature in different places at different times of year.
CLASSZONE.COM
CHAPTERRESOURCES
reference point
motion
position
An object in motion changes position.
SECTION OUTLINE
Position is measured from a reference point.
Motion is measured relative to an observer.
1.1
VISUALIZATION
Learn how your motion makes a difference in what you observe.
CHAPTERRESOURCES
Newton's first law Objects at rest remain at rest, and objects in motion remain in motion with the same velocity, unless acted upon by an unbalanced force.
Forces change motion.
SECTION OUTLINE
net force
force
Newton's first law
inertia
2.1
SIMULATION
Change the sizes and directions of forces on an object and predict how it will move.
CHAPTERRESOURCES
Newton's second lawNewton's second lawThe acceleration of an object increases with increased force and decreases with increased mass, and is in the same direction as the force. centripetal force
Force and mass determine acceleration.
SECTIONOUTLINE
2.2
SIMULATION
Explore Newton’s second law.
CHAPTERRESOURCES
Chapter ResourcesCHAPTER HOME
BACK TO CHAPTER
Content Review Review key concepts and vocabulary
Math Tutorial Review math concepts
Resource Center Get more information on select science topics
Standardized Test Practice Practice state standardized tests
Animations Link to all the McDougalLittell Science animations
Review Game Play a fun interactivereview game
Audio Readings Hear chapter audio readings
Image GalleryClick here to review chapter images and animations
Click on the items below to access resources on CLASSZONE.COM
• Speed is how fast positions change with time.
velocity
vector
speed
Speed measures how fast position changes.
SECTIONOUTLINE
distance
00:00 00:02Speed =
distance
time
1.2
CHAPTERRESOURCES
Acceleration measures how fast velocity changes.
acceleration
SECTIONOUTLINE
1.3
VISUALIZATION
Explore how changing the acceleration of an object changes its motion.
CHAPTERRESOURCES
Chapter ResourcesCHAPTER HOME
BACK TO CHAPTER
Content Review Review key concepts and vocabulary
Math Tutorial Review math concepts
Resource Center Get more information on select science topics
Standardized Test Practice Practice state standardized tests
Animations Link to all the McDougalLittell Science animations
Review Game Play a fun interactivereview game
Audio Readings Hear chapter audio readings
Image GalleryClick here to review chapter images and animations
Click on the items below to access resources on CLASSZONE.COM
Chapter ResourcesCHAPTER HOME
BACK TO CHAPTER
Content Review Review key concepts and vocabulary
Math Tutorial Review math concepts
Resource Center Get more information on select science topics
Standardized Test Practice Practice state standardized tests
Animations Link to all the McDougalLittell Science animations
Review Game Play a fun interactivereview game
Audio Readings Hear chapter audio readings
Image GalleryClick here to review chapter images and animations
Click on the items below to access resources on CLASSZONE.COM
6.2
SECTION OUTLINE
Temperature depends on particle movement.
temperature
kinetic theory of matter
thermometer
• Temperature is commonly measured on the Fahrenheit or Celsius scales.
• All particles in matter have kinetic energy.• Temperature is the measurement of the average kinetic
energy of particles in an object.
• Particles in a warmer substance have a greater average kinetic energy than particles in a cooler substance.
VISUALIZATION
Explore how temperature affects the speed of particles.
CHAPTERRESOURCES
Chapter ResourcesCHAPTER HOME
BACK TO CHAPTER
Content Review Review key concepts and vocabulary
Math Tutorial Review math concepts
Resource Center Get more information on select science topics
Standardized Test Practice Practice state standardized tests
Animations Link to all the McDougalLittell Science animations
Review Game Play a fun interactivereview game
Audio Readings Hear chapter audio readings
Image GalleryClick here to review chapter images and animations
Click on the items below to access resources on CLASSZONE.COM