What's So Hot About Climate Change?

Go this site

Tiki's Hot Earth

Arrow through all 10 pages in the Table Of Contents.   You will have Monday - Thursday to do the reading.   You must comment by Friday.

After reading all 10 pages express your opinions and the reasons for that opinion keeping these questions in mind.  You must post at least 5 sentences and reply to a post by a classmate.

I think the causes of Global Warning are......

I think humans can/cannot change Global Warning because.....

How can Global Warming be stopped?

Why is Global Warming so controversial?

Chemical & Physical Reactions

5th Grade Science Core Curriculum
Science Benchmark
The weight of an object is always equal to the sum of its parts, regardless of how it is assembled. In a chemical reaction or physical change matter is neither created nor destroyed. When two or more materials are combined, either a chemical reaction or physical change may occur. Chemical reactions are often indicated when materials give off heat or cool as they take in heat, give off light, give off gas, or change colors. In a chemical reaction, materials are changed into new substances. In a physical change a new substance is not formed.

5th graders are expected to know and understand what is involved in chemical and physical reactions.  We have had a guest speaker, Ms. Cherry, from The Children's Museum, and done several experiments with chemicals and everyday objects.  

Watch the following video then comment on this blog post.  At least 5 sentences are required to complete the post.  Watch spelling and punctuation please.  

http://www.visuallearningsys.com/subscription/elementary/investigating_chemical_reactions

• What are 4 indicators of a chemical reaction?
• How do you know if popping popcorn is a chemical reaction or physical change?