WELCOME TO: MRS. HARRIS’ SCIENCE CLASS Find your seat by looking at the name on the student information sheet. Then begin filling out your student information sheet. You may put your kleenexes/paper towels and hand sanitizer in the back of my room.

Good morning If you have not filled out your Section 2 Table of Contents, do so now

SCIENCE JOURNAL

I. Section 1 – Notes A. Notes will be taken & tests will primarily come from the notes B. Table of Contents will be filled out before taking notes C. Each entry on notebook paper must have a date & Page #

II. SECTION 2 - papers A. All the papers from the unit will be given to you ahead of time. B. Each page should be # and dated C. Each entry in the table of contents needs to be labeled, #, and dated D. ALL PAPERS NEED TO BE KEPT UNTIL THE END OF A 9 WEEKS – E. Journal will be graded as a test grade

III. Section 3 – Flashback (BEST) questions/ Probe activities A. Flashback (BEST) questions – on Post-Test 1. 1 or 2 questions completed at the beginning of each class period; Questions will be from previous content or will work on college- readiness skills of data & graph interpretion 2. Each question worth 2 pts. – graded by shoulder partner & turned in at the end of 9 wk for a grade from shoulder partner B. Probe Activities – thinking activities prior to a lesson; usually work with shoulder partners

SCIENCE BASICS A. Science – “scire” = to know B. Science – knowledge obtained & tested through the scientific method 1. known facts 2. always changing 3. answers questions 4. can be applied to life

C. Areas- “ology”: study of Science Ex. Biology, zoology, meteorology, geology, cytology, physiology, paleontology, astronomy, herpetology

D. Observation – use all senses; - sight - smell - taste - hearing - touch

1. Qualitatative – descriptions – ex. Round, blue, soft, etc. 2. Quantitative – numbers, measurements; gathering data ex. 25 ml, 50 cm, 37 o C, 5 N

SCIENTIFIC METHOD -

II. Scientific Method – (SHEC) A. State the Problem/Gather Information

State problem (ask question)

B. Hypothesis – educated, testable guess

Hypothesis

C. Experiment – test/analyze data 1. control – do nothing to; used for comparison 2. test 1 variable – thing you test – try to test 1 thing at a time

a. independent variable – variable being changed; ex. giving a headache medicine; fertilizer put tomatoes; x-axis (on the bottom) b. dependent variable – observed result of the independent variable being changed; ex. time it takes for headache to be gone; size of tomatoes; y- axis (on the side)

3. repeat many times/use large #s ex. test 20 times; use thousands of subjects

Design and Conduct an Experiment

Analyze the Results of an Experiment

D. Conclusions are drawn - Is circular State problem Hypothesis Conclusions Experiment

Conclusions

III. Tools/Measurements A. meter stick/ruler: measures length – units: m or cm area = l x w B. thermometer: temperature – o C or K 1. Kelvin = o C or Celsius = K Absolute Zero (0 K) = all molecular movement stops ex. 10 C = 283 K

C. balance: measures mass – units: grams 1. mass – amt. of substance 2. weight - force of gravity on mass

Mass and Weight

D. graduated cylinder, beaker or ruler: measures volume – unit: l, ml or cm 3 1 ml = 1 cm 3 volume determined by: 1. looking at volume bottom of meniscus or dip) 2. displacement (or bathtub) method – how much volume moves up 3. V = l x w x h (use ruler – cm 3 )

E. balance/grad. Cyl. (or ruler) = finds density: mass/volume – units: g/ml or g/cm 3 ex. 5 grams 2.5 ml = 2 g/ml ex. 10 grams 20 cm 3 =.5 g/cm 3

F. spring scale – measures force/weight: units newtons (n) G. barometer – measures air pressure – units mm or atm

H. Microscope – views small items