1. Reading Data on a Graph
Do Now 1
LP 1 start

2. Do Now 1
ADDED QUESTIONS
At what temperature is the highest percentage of largemouth bass reaching maximum size?
At 19° C, what percentage of largemouth bass reach maximum size?
Describe what happens with the percentage of Northern Pike reaching maximum size between:
10°C - 20°C =
20°C - 25°C =
25°C - 28°C =

3. Graphing Objectives Understand the reason for graphing data
Reading and interpreting information (data) on graphs
Learn to create single and double-line graphs

4. Do Now 2 Describe the levels of hormone 1 in the blood over 28 days:
Intro… pre-assessment

5. How do you create a graph?
Purpose of Graphing
Graphs are used to organize data and see the results more clear
How do you create a graph?
You need:
A title (what’s the graph showing?)
Labels on both axis’
Y-axis = labeled with the
Dependent Variable
X-axis = labeled with the
Independent Variable
Create scales on both axis’
Scales must have highest & lowest values and be EVEN SPACED
REMIND:
Dependent variable = what you are measuring in an experiment
Independent variable = what you change or are testing in an experiment

6. Do Now: Properly label your graph
Alex tested to see if the amount of water affected the height of grass. He gave different amounts of water to the same type of grass. Grass with the most water grew the longest while grass with the least amount of water grew the shortest.
Amount of sunlight and grass length
Height of Grass (cm)
What is the dependent variable?
What would a good title be?
What is the independent variable? Dependent variable? (How do you know?.... Height of grass depends on the amount of sunlight.) …think of the building being the vertical or y-axis... it depends on the ground, the horizontal or X-axis
Amount of water (ml)
What is the independent variable?

7. Axis’ must be evenly Spaced after being labeled
Create Axis'
Amount of water
(daily)
Average plant growth (weekly)
0 ml
0 cm
10 ml
1 cm
20 ml
3 cm
30 ml
5 cm
40 ml
7 cm
50 ml
Amount of water and plant height
Height of Grass (cm)
LP 1 finish
REMEMBER:
Axis must include the HIGHEST and LOWEST values!!!
Amount of water (ml)

8. NO! Do you have to start your scales at ZERO?
As long as your scales have the highest and lowest values (numbers) and are evenly spaced!
NO!
LP 2 start

9. Creating a Graph – What do you Need

10. DO NOW 5,000 Wilson wanted to make bigger bubbles.
Someone said this Big Bubble liquid
Will make bigger bubbles than plain old
Regular soap. A hypothesis was made and
An experiment was done. Results are in the
Chart.
What is the dependent variable in this data box?
What is the independent variable?
What numbers must be included on the Y axis (dependent variable)?

11. Bubble Size with different Soaps
Create a SCALE ONLY!!

12. Do Now
PAGE 5
Lp 3.4 – make sure a title is given!!

13. Toothpick Lab Activity
While labs are being passed out:
Read over the introduction and fill-in any data you can on your data table.
Create a hypothesis!

14. Toothpick Lab Activity
We need volunteers and we need data!
Time
Number of toothpicks broken
Why do I have the same volunteers? (to keep the experiment controlled!!!)
-how do you find the average amount of toothpicks broken?

15. Toothpicks broken over time

16. Do Now
PAGE 4
Begin here 9/16 (LP 4)

17. This is the rubric used to grade your graphs given by New York State

18. Creating Graphs with Multiple Lines

19. DO NOW #5
Independent variable
Dependent variable

20. DO NOW #6