Home : 2002 : September : 5
HERE ARE THE LABS>> ENJOY By Trish
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Since I am getting an OVERWHELMING amount of requests for the labs.. Here they are.. Any questions, email me Trish Ok, the first one is the 'M&M' lab. This one I do with Skittles (individual size bags) in case someone | has a chocolate allergy. The top part is how I had my 8th graders do it last year. The second part (which starts with Name, Date, Period) I re-did for my 5th graders this year. It is 90% the same, just a little easier. The alka-selzer lab follows Any questions, email me THE SCIENTIFIC METHOD LAB The scientific method is a way to think about problems and a way to solve problems. | | Scientists do not always follow the steps of the scientific method in order. However after a problem is solved, a scientist can use the scientific method to explain how the solution was reached. The scientific method can be broken down into the following parts: 1. State the problem. 2. Gather information. 3. Form a hypothesis. 4. Experiment. 5. Record and analyze data. 6. State a conclusion. INTRODUCTION
In this activity, you will follow the steps of the scientific method to discover how many candies of each color are in a bag of colored candies. It will show you how scientists record data on charts, make graphs, and draw conclusions. Do not eat any of the candies because it will affect your results. Do not open the bag until you are instructed to do so. OBJECTIVES 1. Name and describe the steps of the scientific method. 2. Follow the steps of the scientific method to solve a problem. 3. Record data in a table or chart. 4. Construct a graph that shows the results of the investigation. MATERIALS 1 small bag of different-colored candies per group markers or crayons to match candy colors DIRECTIONS 1. State the problem. (Hint: What are you trying to find out?) ______________________________________________________________________________________________________________________________________________________________ 2. Gather information. It is unlikely that you will find any information about colored candies in the library. Probably your best sources of information are experts, people with experience with colored candies. Look around and you will find some experts, in fact you may be an expert yourself. What colors of candies are found in these bags? ______________________________________________________________________________________________________________________________________________________________ Which color is most common?______________________________________________________ 3. Form a hypothesis. Write a statement that tells how many candies you think will be in the bag and how many will there be of each color. Remember, the total number of candies must equal the sum of candies of each color. _____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ 4. Experiment. Open the bag of candies. No eating yet! Sort the candies by color. 5. Record and analyze data. A. Write the colors of the candies in the first column of the table. B. Count the number of candies of each color. Record the results in the frequency column of the table. C. Add the numbers in the frequency column. Write the total number of candies. D. Calculate the percentage of each candy color. Divide the number of each color by the total number of candies. COLOR FREQUENCY PERCENT XXXXXXXXXXXXXXXXXXX Total: XXXXXXXXXXXXXXXXXXX E. Use the data you entered in the table to make a picture graph below. Use markers that correspond to the candy color. Color one circle for each candy in your bag. COLORS OF CANDY F. Use the data in your table to make a bar graph. Label the horizontal axis with the colors of the candies. Label the vertical axis with the numbers from 1 to 20. Color the bars the same colors as the candies. G. Use the data in your table to make a circle or pie graph. Change the percents back to decimal numbers (10 percent = 0.10). Now multiply the 360 degrees in a circle by the decimal numbers to determine how big a slice of the circle each color gets. NUMBER OF DEGREES PER COLOR COLOR DEGREES XXXXXXXXXXXXXXXXXXXXXXXXXXXXXX TOTAL: 6. Draw a conclusion. On the lines below, write a statement that answers the questions or addresses the problem. It should include the total number of candies in your bag and the frequency of each color. You should mention how your actual results compare with your hypothesis. ________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
Name _________________________ Date _______________ Class/Period_________ Title : Scientific Method Lab Materials: 1 small bag of colored candies Crayons to match candy colors Directions: 1. State the problem. (Hint: What are you trying to find out?) ________________________________________________________________ 2. Research A. What colors of candies are found in these bags? __________________________ _________________________________________________________________ B. Which color is the most common? ____________________ 3. Write your hypothesis. Write a sentence that tells how many candies you think will be in the bag AND how many will there be of each color. Remember, the total number of candies MUST equal the sum of candies of each color. ______________________________________________________________________ ______________________________________________________________________ 4. Experiment Open the bag of candy. Sort the candies by color. 5. Record and analyze data. A. Write the colors of the candies in the first column of the table. B. Count the number of candies of each color. Write the results in the frequency column of the table. C. Add the numbers in the frequency column. Write the total number of candies. D. Use the data you put in the table to make a bar graph. Label the horizontal axis with the colors of the candies. Color the bars the same colors as the candies. 6. Write your conclusion. _________________________________________________________________________ _________________________________________________________________________ Color Frequency(Here, is supposed to be a table, but for some reason, it isn't coming through. I had 2 columns with about 8 rows) Any notes I have is typed in this font. everything else, should be printed for the student. Remember, my tables did not copy over. I used the graduated cylinder and the beaker to teach measuring skills. These are not in the original lab. If you don't have these items, simply have them fill the bag about half way full. Title: Mysterious Tablet Question: What will happen to a tablet dropped into a liquid? Materials (per group): Effervescent tablet Ziploc bag Liquid (water) Beaker Graduated cylinder Steps: 1. obtain materials for group. 2. Predict what will happen when the tablet is placed in the liquid. 3. Using the graduated cylinder, measure liquid out of the beaker. (here, I choose different members in the groups to measure different amounts of the water. Then they were to pour the liquid into the ziploc bag. I did this about 3 different times using 3 different measurements.) 4. Drop the tablet into the liquid and immediately zip up the bag. (Make sure to explain that they have to close the bag COMPLETELY!) 5. Draw a before and after picture in the boxes below. (What the bag and the liquid looked like BEFORE the tablet and after the tablet was put into it) 6. Be able to discusss your observations and predictions.
Prediction: ___________________________________________ Observations: Data: Here should be a table with 3 columns, with 3 rows. Materials Before After Tablet Liquid Bag In the table above, they should write about each of the materials before the tablet was put in the ater and after the tablet was placed in the water. Ex. BAG, flat, clear, etc.. After: puffy, bubbly Draw: Before After Here was a table that hd 2 columns, with 2 LARGE rows under. HEre is wehre they are to draw their before and after pictures.
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