Making Snowflakes-from NPR Science Friday

Here is the model that we looked at in class!

http://phet.colorado.edu/en/simulation/wave-on-a-string

Test Corrections for Homework!!!

All students are required to do test corrections for the test we took right before break. Students are to write out the question and the answer for each question they missed 3 times each. If a student missed question one, it would look like this:

1. Which of the following is a good conductor of heat? cast iron

Which of the following is a good conductor of heat? cast iron

Which of the following is a good conductor of heat? cast iron

Since this test was graded digitally, students were each given a strip of paper that had showed which questions they answered correctly or incorrectly. The letters in the darker font on the strip are the questions which were answered INCORRECTLY.

This is due on Monday, but must be turned in by Friday to be reflected on the upcoming progress reports.

The plan up to Thanksgiving.

Thursday(tomorrow)-- finish going over "What is Heat?" assignment. Students have a quiz over the two chapters. Students should focus on vocabulary.

Friday--in-class activity to reinforce different types of heat transfer (conduction, convection, radiation)

Monday--Chapter Review from green Study Guide handed out today. p. 168-172 (omit 23-26) needs to be complete.

Tuesday--Test over "Temperature" and "What is Heat?"

Temperature

SUMMARY

• Temperature is a measure of the average kinetic energy of the particles of a

substance.

• Fahrenheit, Celsius, and Kelvin are three temperature scales.

• Thermal expansion is the increase in volume of a substance due to an increase

in temperature.

• Absolute zero (0 K, or –273°C) is the lowest possible temperature.

• A material may be chosen for a particular purpose because of the way it

responds to heat or cold.

• Some materials, such as metals, conduct energy well.

• Some materials, such as air or ceramics, do not conduct energy well.

VOCABULARY

1. temperature

2. thermal expansion

3. absolute zero

4. expand

5. contract

What is Heat?

SUMMARY

Heat is energy transferred between objects that are at different temperatures.

• Thermal energy is the total kinetic energy of the particles that make up a substance.

• Thermal energy will always be transferred from higher to lower temperature.

• Transfer of thermal energy ends when two objects that are in contact are at the same temperature.

• Conduction, convection, and radiation are three ways thermal energy is transferred.

• Specific heat is the amount of energy needed to change the temperature of 1 kg of a substance by 1°C.

• Energy transferred by heat cannot be measured directly. It must be calculated using specific heat, mass, and change in temperature.

VOCABULARY

1. heat

2. thermal energy

3. thermal equilibrium

4. thermal conduction

5. thermal conductor

6. thermal insulator

7. convection

8. radiation

9. specific heat

What is heat? Homework.

Tonight my 4th and 5th periods have science homework!!! Students who did not finish the in class assignment need to complete the guided reading sheet for homework. Students can access the textbook on-line here:

Science Text Book On-line

Students can access our textbook at home. There are a number of links to interactive sites and objects as well as some links to reading for better understanding and going beyond what we do in class. I have it set to open in a new browser window. If you are having problems getting the page to show, you may have to temporarily allow pop-ups for the page to show up. username: rbulldog1. password: r8x8v I have also created a youtube playlist of videos related to our current topic of study. http://www.youtube.com/playlist?list=PL8CD2ECDDDDE7B228 Right now we are focused on "Heat vs. Temperature." Next, will be looking at conduction, convection, and radiation.

We are studying temperature right now.

Here is a video we watched in class today.

States of Matter

Kids were asking about the interactive we were working with today in class here it is.

In addition, here is a link to many more science interactive programs. http://phet.colorado.edu/en/simulations/category/new There is a file that is downloaded to your computer that you will have to accept. So, KIDS...ASK YOUR PARENTS FOR HELP WHEN USING THESE INTERACTIVES.

Click to Run