1. Seed Germination: Preparing for an Experiment
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 Name 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)
Comfort in airline seats -
Correlation:
bar graph
(frequency within
categories)
Height (in)
Weight (lb) +
Figure 1: Percent Grade in Classes 20 40 60 80
Band
Math
Science
Art
Computers
% Grade
Classes

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 Biotic vs. Abiotic
Climate
Soil
Stimulants
Inhibitors
Biotic vs. Abiotic
Competition
Allelopathy

14. The pH Scale
neutral
acidic
basic or alkaline

15. pH Example
ACID
NEUTRAL
BASE

16. Example Using pH

17. Fire Exposure Example

21. Fire Exposure Example
CONTROL
TREATMENT 1
TREATMENT 2
TREATMENT 3

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