Science Notes

Metric Story Podcasts:
Period 1
Period 2
Period 4


Density Lab - click for a larger version

Ice Demonstration - click for a larger version


The data shows that volume and mass have no correlation when observing various objects. The metal rod had the largest mass but the smallest volume. The plastic screw, however, had the largest volume but the second lowest mass. The metal objects had larger masses than the other objects. The volumes and masses were different for each object.


Volume and Mass Lab

How to find the volume of an irregularly (weird) shaped object.
1. Put a certain amount of water in a graduated cylinder.
2. Record the volume of the water.
3. Tilt the graduated cylinder and slide the object into the water.
4. Measure the new volume of the water and record it.
5. Subtract the old volume from the new volume.
6. Convert the volume from mL to cm3.

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Three students tested out of Chapter 2 and have begun their project on Physical Properties. You can follow their progress here.
Mission Possible is also underway. You can see the action packed projects on the class pages!

Today we fininished a lab experiment to determine if mass is conserved when we mix rubbing alcohol and water together. We measured their masses separately and then again when the liquids were mixed.

Mass and volume are two very different types of measurement. Volume is a measure of the amount of space an object takes up and mass is a measure of the amount of matter in an object. See what we are doing in lab this week! click here
9/19 07
The metric system can be challenging to master but today we made a special tool to help us. As long as you know the order of the prefixes from least to greatest and can multiply and divide by the number 10, then you can convert metric measurements from one unit to another!


Today we also began work on our Digital Science Stories Project. We will be learning to tell our science stories in order to improve our communication skills and to help us really learn the material beyond memorizing for a test or quiz.

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We finished the Types of Measurement lab rotations and now we are ready to share our comments! Here are some pictures from the lab.

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Today we began our lab rotaions for the Types of Measurement lab. As you visit each station, see what you can learn about length, volume, mass, time, temperature, and weight. Try things out using the lab equipment and test some ideas you have. Do questions come to your mind as you work? Please be sure to write down all your notes, observations, questions, and ideas to share with the group at the end of the rotations!

It is important to give clear, detailed, and complete descriptions when you are writing observations. Here are some things to think about when you write.
  1. Be clear - Think about how a sentence will sound if it is spoken aloud. Does it make sense or is there a better way to word your sentence?
  2. Use detail - Use describing words to enhance your observations. Did the solution bubble slightly or were there many bubbles? Was it dark pink or pale pink?
  3. Complete the observation - Be sure to include a description of the manipulation as well as the resulting change that you observe. Which or the following is a complete observation? a.) She poured the liquid from flask A into the beaker. b.) The liquid in the beaker turned pale pink. c.) When she poured the liquid from flask A into the beaker, the solution turned pale pink. Did you choose "c."? That is the complete observation.

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9/4 - 9/7
Welcome to 8th Grade Physical Science! Let's review what we learned this week.
  1. After getting to know each other in our groups, we began work on team scrap book pages. I see lots of interesting and creative ideas already. Continue to bring in supplies and pictures to help your team. If you need time during resource period, let your teacher know that you are welcome to come to room 1 with your group.
  2. One of our goals this year is to become stronger readers. We will use our reading folders to help us focus while we read our text book. Remember to read a few paragraphs and then stop reading to answer the questions. Yellow Chapter 1 pages are due on Wednesday.
  3. Observations and Interpretations! Our assumptions and incorrect interpretations got in the way of our observations this week as we watched the pH indicator demonstration. One big error was that we expected any clear liquid to be pure water. It turned out that the demonstration involved two different solutions, amonia cleaner and a pH indicator! Oops! That's where the pink color came from!
  4. Laboratory Notebooks - We learned a few rules for using our notebooks in the lab. Always write in pen, cross out mistakes so they remain legible, put a heading and date on each page, record each activity in the table of contents, and leave the back of each page blank so that additional information can be added later on.