scientific+method

= = == =** Vocabulary ** =

manipulated variable -The variable that changes in the experiment. ex, differnt kinds of soil in each garden.

constant-Something kept constant throughout the experiment

Title ﻿- The Name of the experimant

Purpose- ﻿ The Reason for conducting the experiment

Hypothesis-an educated guess on your lab or experiment you are conducting

Results-What you can compare to your hypothisis

Conclusion- How you conclude your data from the experiment

data ﻿-What you found from the experiment

table-An orginazed way of analyzing your data

line graph-A graph using lines

bar graph-a graph using bars

pie chart-A circle split into diffrent percets

quantitative ﻿-An observation using numbers and facts

qualitative- ﻿Your point of view on something that is probably true. Not using hard facts.

=** Questions ** =

**Question #1** ** In the beginning of the spring, it seems everyone is caring for their front lawns by sprinkling fertilizer to help the grass grow better? Does fertilizer really help the lawn grow better? **

** a) Ask a question a scientist might ask given this information. **

** b) Write a possible hypothesis for this experiment. **

** c) Design an experiment to help answer the original question. ** ** Describe or draw four possible groups in your experiment – **

** d) What is the manipulated variable? **

** What variables are being kept constant? **

** What is the control group in your experiment? **

** What will you be measuring to include in your data table and graph? ** ** How will you measure the differences between the 4 groups? **

** e) Write a conclusion for the results below: **

Kidney Bean Plant Growth (cm)
 * || no fertilizer || 3 cups of fertilizer ||  ||   ||   ||
 * Plant 1 || 12.5 || 13.6 ||  ||   ||   ||
 * Plant 2 || 10 || 12.5 ||  ||   ||   ||
 * Plant 3 || 13.6 || 14.3 ||  ||   ||   ||
 * Plant 4 || 11.2 || 15.7 ||  ||   ||   ||
 * Average ||  ||   ||   ||   ||   ||

Make a graph for the data above:

Question #2 How did each lab this year help us better understand science concepts:

A. The Paper Airplane Lab Understad how to hypothisise and use materials and variables

B. The Xpult Lab Helped us learn about variables

C. The Mixture Lab

D. The Baking Soda Lab (Ultimate Fizz)

E. Making Chalk Lab

F. Change of State Lab (snow)

G. Making Cheese

H. Middle School Gardens (Tulip Bulbs)

I. Chemistry Independent Project (temperature, salt and boiling, temp and solubility, mixing)

J. Osmosis Egg Lab

Question #3

**Using the Scientific Method**

Inspired by the results of our Learning Garden data, we conducted different experiments using kidney beans in the lab. Answer the questions below using the data from the graph below:

Growth of Tulip Plants (cm) at **Haverford** **School** (Suter) || Control (potting Soil) ||
 * || Middle School Garden || Lower School Garden || West Garden
 * || 9 || 8 || 16.5 || 23.5 ||

**a) What was the purpose of this experiment (original question)?**

**b) Write a good hypothesis for this investigation? ( if. . then. . because)?**

**c) What is the manipulated variable in this experiment?**

**d) Name THREE variables that are kept constant in this experiment?**

_ _ __

**e) Where would you get the soil for the control group? Explain why.**

f) Make a Graph for the Data Above.

Question # 4

Give some examples of quantitative data collected in class or observed in everyday life ( \10 examples)

Give some examples of qualitative data collected in class or observedin everyday life (10 examples)