KEY CONCEPT
All living things are based on atoms and their interactions.
MAIN IDEAS
– Living things consist of atoms of different elements.
– Ions formed when atoms gain or lose electrons.
– Atoms share pairs of electrons in covalent bonds.
VOCABULARY
– Atom
– Element
– Compound
– Ion
– Ionic bond
– Covalent bond
– Molecule
This is a video tutorial I created to accompany this chapter's reading. Please be sure to take notes as you watch the video. You can pause to write things down or re-watch it as often as needed.
This is part 1 of 2
Source: http://youtu.be/9F2euhsMlx8
This is a video tutorial I created to accompany this chapter's reading. Please be sure to take notes as you watch the video. You can pause to write things down or re-watch it as often as needed.
This is part 2 of 2
Source: http://youtu.be/1nIgvG2apFU
KEY CONCEPT
Water's unique properties allow life to exist on earth.
MAIN IDEAS
– Life depends on hydrogen bonds in water.
– Many compounds dissolved in water.
– Some compounds form acids or bases.
VOCABULARY
– Hydrogen bond
– Cohesion
– Adhesion
– Solution
– Solvent
– Solute
– Acid
– Base
– pH
This is a really good animation that you should take notes on as you watch. Make sure you pause it while taking notes and replaying it as necessary.
Click on "Go to Animation" on the green bar
http://www.sumanasinc.com/webcontent/animations/content/propertiesofwater/water.html
CSA Astronaut Chris Hadfield performed a simple science experiment designed by grade 10 Lockview High School students Kendra Lemke and Meredith Faulkner. The students from Fall River, Nova Scotia won a national science contest held by the Canadian Space Agency with their experiment on surface tension in space using a wet washcloth.
Source: Credit: Canadian Space Agency/NASA
KEY CONCEPTS
Carbon-based molecules are the foundation of life.
MAIN IDEAS
– Carbon atoms have unique bonding properties.
– Four main types of carbon-based molecules are found in living things.
VOCABULARY
– Monomer
– Polymer
– Carbohydrate
– Lipid
– Fatty Acids
– Protein
– Amino acid
– Nucleic acid
This activity serves as a practice for understand and identifying independent variables and dependent variables in an experiment.
KEY CONCEPT
Life depends on chemical reactions.
MAIN IDEAS
– Bonds break and form during chemical reactions.
– Chemical reactions release or absorb energy.
VOCABULARY
– Chemical reaction
– Reactant
– Product
– Bond energy
– Equilibrium
– Activation energy
– Exothermic
– Endothermic
KEY CONCEPT
Enzymes are catalysts for chemical reactions in living things.
MAIN IDEAS
– A catalyst lowers activation energy.
– Enzymes allow chemical reactions to occur under tightly controlled conditions.
VOCABULARY
– CataList
– Enzyme
– Substrate
