Finding volume

She is being extra careful!

We have been finding the volume of various things the past week.  We found the the volume - the amount of space matter takes up - of water using a graduated cylinder.  We used various sized graduated cylinders.

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Measuring and recording data for their set of Wood Blocks.

We have just finished determining the volume of a regular shaped object - a rectangular prism - using a ruler.  We drew rectangular prisms and used the formula V = L x W x H to get the volume.  The units are cubic centimeters ( cm3 ).

Comparing their results.

A full se of class data for the Wood Blocks!

Making Measurements - The Tools and Metric Units

We have been working on Measurement in class.  Measure twice, cut once is out motto!  We learned about linear (length) measurent and how to correctly and accurately use a metric ruler, meter stick, metric tape measure, and a meter wheel.  One activity we did was to blow bubbles on our desk and when they popped, measured the diameter of the footprint they left to the nearest mm.
  In addition, we took a Kiolmeter walk to get an understanding of how long a km is.

We practiced using pan balance scales to determine the mass of various objects.

Now, we are learning how to use a Graduated cyclinder to find the volume of water.

Bubbles, Bubbles, Bubbles!

We are bringing together many of the things we have learned this term by doing this experiment.  The kids are using the Scientific Method to investigate the problem.  They have to measure the footprint of the bubble to the nearest 0.1 cm. 

Title: Bubbles

1. Problem: Given the supplies you have, which brand of dish washing liquid will make the biggest bubble?
2. Hypothesis:
3. Experiment:
A. Materials (list)
soap solution
dropper
paper towels
metric ruler
straw
safety glasses

B. Procedures (numbered sentences)
First, make a data chart. Then:
1. Obtain your materials, clear off your desk, and read the entire experiment before you begin.
2. Put 10 drops of soap solution on your desk.
3. Place the end of the straw under the surface of the bubble. Blow gently in the other end to create a bubble on the surface of the desk.
4. As soon as the bubble bursts, measure the diameter of the bubbles footprint and record it. Wipe the surface dry and repeat from step # 2.
5. Practice this several times until you are good at it. Once you are good at blowing bubbles, record the diameter of the next 5 bubbles you blow under the Grand Finale. (Remember, it’s the next 5 bubbles you blow, you can’t pick and choose the bubbles you want.)
6. Find the average diameter for those 5 bubbles and record it.
7. Clean up.

4. Observations:
Your observations will include 2 things. One is your data chart. On your final draft you can write, “See data chart” and attach your data chart to the end of your lab report. This is known as your Quantitative results.
The second part of your observations will be the Qualitative results. This is where you write what happened and any interesting things you observed.

5. Conclusion: In your own words, you will answer questions A, B, C, and D that are on your Scientific Method Guidelines sheet. For this experiment, I also want you to answer the following questions.
1. What are the controls in this experiment? The controls are the parts of the experiment that are kept the same throughout the experiment.
2. What is the variable in this experiment? The variable is the part of the experiment that is changed. It is what you are testing.
3. What are some possible sources of error in this experiment? A source of error are things outside of your control that might have had an impact on the results of your experiment.

Making Measurements - Finding the volume of a rectangular prism

All matter has a volume.  We have practiced finding the volume of a liquid using a graduated cyclinder.  The last couple of days, we have been learning how to determine the volume of a rectangular prism. 

Using the formula  V = L x W x H, the students have been measuring wooden blocks to determine their volume.  The metric units used are cubic centimeters (cm3).

Making Measurements

In science, we make many measuremnets.  We measure the length, mass, volume, density, and temperature.  We will be learning how to use the proper tools to make these measurements accurately and the correct units that go with these measurents.  All measurements in science class will be in the metric system. 

We have begun by measuring length.  We have discussed the metric units mm, cm, m, and km.  We have been using metric rulers, meter sticks, metric tape measures, and a meter wheel.  "Measure twice, cut once!"