Post on 01-Jan-2016
Objective: # Items # Needed to get Correct
Objective 1: the student will be able to demonstrate and understanding of the nature of science 17
Objective 2: The student will demonstrate an understanding of the organization of living systems 8
Objective 3: Understanding the interdependence of organisms and the environment. 8
Objective 4: Understanding the structure and properties of matter. 11
Objective 5: Understanding motion, forces, and energy
11
Total: 55 29
Objective 1: Nature of ScienceVocabulary Toxic Corrosive Dilute Flammable Waft Biohazard Temperature Mass Volume Time Distance Accurate Precise Observation Problem Hypothesis
Independent variable Dependent variable Control group Experimental group Constant Prediction Inference Trend Pie (circle) graph Line Graph Bar Graph Valid Conclusion Claim Critique Theory Law
Lab Safety
Toxic: Corrosive: Dilute: Flammable: Waft: Biohazard:
Poisonous, harmful
Acid, burns the skin
lower the concentration, (acidwater)
catches on fire easily
safely smell, protect your respiratory system
caution bodily fluids (blood, urine, bacteria, fungi)
•Observe lab symbols
Electrical Hazard Corrosive Open Flame
Prohibited
Fire Extinguisher
Toxic Chemical
Flammable
Observe lab symbols continued…
Environmental Hazard
Recycling Explosive Material
Radioactive Chemistry Hazard Biohazard
LAB EQUIPMENT
Measurements Temperature: Mass: Volume: Time: Distance: Accurate: Precise:
thermometer(*C, *F, Kelvin)
triple beam balance, scale, (kilograms or grams)
Graduated Cylinder, buret, pipet (milliliters)
stopwatch (hours, minutes , seconds)
Meter stick ( kilometers, meters, centimeters)
Exact true value (accuRIGHT)
consistent, close together, nearest decimal (pREPEATABLE)
Equipment Used for:
Beaker
Flask Test tubeGraduated cylinder
BuretPipet
TongsFume hoodStopwatch or Timer
Triple beam balance or scale
ThermometerMeter stick
Never to measure, only to hold and heat liquids
Used to swirl and slows evaporation rate
Used to observe chemicals
Used to measure volume in mL (precise)
Used to measure volume in mL (more precise)
Used to measure small amounts of volume in mL (most precise)
Used to hold HOT beakers
Used when working with toxic gases or noxious fumes
Used to measure time in hours, minutes, seconds
Used to measure mass in kilograms, grams, and milligrams
Used to measure temperature in *C, *F, and Kelvin
Used to measure distance in kilometers, meters and centimeters
Scientific Method
Problem: Observation : Inference: Hypothesis:
Independent variable
Dependent variable:
Control group: Experimental group: Constant:
question you want to solve
see, smell, taste, hear, feel
gathered from clues
try to answer or solve the question (If _______, then ________)
: added, tested or changed in an experiment (x-axis)
what happened from the change, has to measurable, (y-axis)
group or set up that was left alone
groups tested (with independent variable)
what was the same in all groups
TIM & MOBY’s “Scientific Method” Problem: Why is Moby’s plant dying even though it is being
watered every day? Observations:The leaves are brown and falling off, and the soil is
wet and squishy Inference: Maybe Moby is watering his plant too much.
Hypothesis: Fig trees grow best when watered only once a week.
Independent variable: Amount of water Dependent variable: The plants growth
Control group: A Experimental groups: B,C,D
Constants: same kind of plant, same pot,
same soil, and same amount of sunlight Conclusion: Fig trees grow best when watered only once a week
Interpreting Charts and Graphs Prediction:
Inference:
Trend:
Pie (circle) graph:
Line Graph:
Bar Graph:
Valid Conclusion:
what you think is going to happen
gathered from clues
pattern
shows % or parts of a whole
shows relation between independent and dependent variables
used to compare groups or categories
restate results with data or evidence to support it