Presentation is loading. Please wait.

Presentation is loading. Please wait.

Seventh Grade Science Seed Germination: Preparing for an Experiment.

Similar presentations


Presentation on theme: "Seventh Grade Science Seed Germination: Preparing for an Experiment."— Presentation transcript:

1 Seventh Grade Science Seed Germination: Preparing for an Experiment

2 Introduction Purpose Keys to Successful Experiments –seed are useful abundance variety low cost portability

3 Seed Germination Focus of the experiment Experimental treatments Environmental factors Terms: –radicle, shoot, seedling

4 Scientific Names Name Must be in Latin binomialName Must be a binomial –2 parts, genus & species

5 Diagram of the Parts of a Seed Dry & pre-soaked seed examinations Label drawing –common name –family name –scientific name

6 Take-Home Exercise Take home baggies, towels, & seeds Record names of seed types

7 Construct an Observation Table Use space on p.6. Observations and Measurements Bring baggies with sprouted seeds back to lab next week Kidney beans, day 2

8 Summarizing Data Data Statistics Populations vs. Samples quantitative vs. qualitative variables error, precision, and bias

9 Graphing Correlation: bar graph (frequency within categories) Height (in) Weight (lb) + Height (in) Comfort in airline seats - Figure 1: Percent Grade in Classes Band MathScienceArtComputers Classes % Grade

10 Descriptive Statistics mean population sample median range standard deviation

11 Presenting Tables Rows & columns Units must be indicated, e.g., –grams (g) –centimeter (cm) –millimeters (mm)

12 Seed Germination Experiment

13 Introduction Physical factors of the environment –Climate –Soil –Stimulants –Inhibitors Biotic vs. Abiotic Competition Allelopathy

14 The pH Scale neutral acidic basic or alkaline

15 pH Example ACID BASE NEUTRAL

16 Example Using pH

17 Fire Exposure Example

18

19

20

21 CONTROLTREATMENT 1 TREATMENT 2TREATMENT 3 Fire Exposure Example

22 Supplies and Equipment Provided: –ziploc baggies, paper towels, and seeds Not Provided: –inexpensive common household items needed to carry out the experiment

23 Designing an Experiment problem hypothesis procedure prediction construct data table

24 Check it Out (p.7.) I will check your experimental design Begin experiment after you get the OK Conduct experiment for ONE WEEK

25 Writing up Your Experiment Must Have a Formal Lab Report Write-up which includes –Observations table graph –Discussion


Download ppt "Seventh Grade Science Seed Germination: Preparing for an Experiment."

Similar presentations


Ads by Google