More : Reading Data on a Graph Do Now 1

ADDED QUESTIONS 1.At what temperature is the highest percentage of largemouth bass reaching maximum size? 2.At 19° C, what percentage of largemouth bass reach maximum size? 3.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 =

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

1.Describe the levels of hormone 1 in the blood over 28 days: 2.Describe the levels of hormone 2 in the blood over 28 days: Do Now 2

Purpose of Graphing  Graphs are used to organize data and see the results more clear How do you create a graph? You need: 1.A title (what’s the graph showing?) 2.Labels on both axis’ o Y-axis = labeled with the Dependent Variable o X-axis = labeled with the Independent Variable 3. Create scales on both axis’ o Scales must have highest & lowest values and be EVEN SPACED

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) Amount of water (ml) What is the dependent variable? What is the independent variable?

Axis’ must be evenly Spaced after being labeled Amount of water (daily) Average plant growth (weekly) 0 ml0 cm 10 ml1 cm 20 ml3 cm 30 ml5 cm 40 ml7 cm 50 ml3 cm Amount of water and plant height REMEMBER: Axis must include the HIGHEST and LOWEST values!!! Amount of water (ml) Height of Grass (cm) Create Axis'

 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!

Creating a Graph – What do you Need

DO NOW 5,000 1.What is the dependent variable in this data box? 2.What is the independent variable? 3.Describe the scales you would create… how high and low would the scales be? 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.

Bubble Size with different Soaps

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

TimeNumber of toothpicks broken Toothpick Lab Activity We need volunteers and we need data!

Toothpicks broken over time

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Creating Graphs with Multiple Lines

DO NOW #5 Independent variable Dependent variable

DO NOW #6