Wed., March 22nd: Testing Physical Properties and Chemical Beginnings

What are CHEMICAL CHANGES and PROPERTIES?

CHEMICAL PROPERTIES: Properties that can be observed during or after a chemical reaction. Examples are how easily something catches fire (flammability), decomposition, reactivity with air (rust), water, how toxic it might be.

CHEMICAL CHANGES- 

  • A change that occurs when one or more substances change into entirely new substances with different properties.
  • Substances present at the beginning of the change are NOT present at the end.
  • Cannot or are very difficult to undo!

EVIDENCE OF A CHEMICAL CHANGEhttp://www.classzone.com/vpg_ebooks/ml_sci_gr8/accessibility/ml_sci_gr8/page_155.pdf

Different signs include

  • an odor is produced
  • light or smoke is seen
  • temperature change- it takes in or gives off heat
  • production of gas bubbles
  • color change (like rusting)

WATCH

REVIEW

LET’S PLAY (Use Chrome)

LAB INFORMATION RESOURCES

  • Exploritorium: scroll down the page for information on how this works and other questions to ask.
  • Science Bob: has reaction information and things to test.

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Monday, March 20th: Physical Properties

a169483b830c9acd4b27591d4f27113fWhat is a physical property of a substance and what are physical changes?

A physical property is a property of a substance that does not involve a chemical change.

Examples include: shape, melting/boiling point, solubility, density, color, weight, mass, volume, state of matter, or hardness.

A physical change is a change that alters the form or appearance of a material but does not make the material into another substance.

Evidence of physical changes include: change of shape, weight, color, volume, hardness, state of matter, texture (life if you sand a piece of wood, it is still wood but smoother).

Physical Properties– http://chemistry.elmhurst.edu/vchembook/104Aphysprop.html

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Monday, March 20th: Blogging

kidblog.org

POST #1

  1. Tell me the title of your book.
  2. Your topic.
  3. Why you chose that book or subject.
  4. Three facts from your reading.

We have been adding to our blogs and now let’s use a checklist to see if they can be shared and published. Here is a digital copy to go along with the one I hand out in class: WritingChecklist.

What to think about when you are posting and responding.

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Monday, March 13th: How Big is an Atom?

Today we are answering four main questions in our journal:

  1. How big is an atom?
  2. What does an atom look like?
  3. How can we see or touch an atom?
  4. What is a scientific model?

NUMBER 1: How Big is an Atom?

 NUMBER 2: Atomic Models: What does an atom look like?

NUMBER 3: How Can You See or Touch and Atom?


NUMBER 4:

Other: Atoms, Matter, and Space

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Thursday, March 8th: Atoms, Molecules, and Elements

Overview:

  1. Bill Nye- Ask Bill Nye!
    1. Video: https://www.youtube.com/watch?v=QZAh3b2vNf8
    2. Video: http://www.schooltube.com/video/52bb23430c9c4e0ebb74/Bill%20Nye%20-%20Atoms
    3. Video Guide:
  2. Particles of Matter Reading
    1. Information: The Particles of Matter
    2. Guided Reading Outline: What is Matter Made Of
  3. Exploration of Sites Below

Atoms and Elements Interactive- https://www.learner.org/interactives/periodic/index.html

Atoms

DO

Atoms and Molecules

Elements

Periodic Table

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Wed., March 8th: Journal Checks, Reading and Blogging

  1. Fill out a JOURNAL REFLECTION SHEET. Ms Fitz will be going over this with you during class.
  2. Complete all journal entries and missing work.
  3. Non-Fiction Reading- Read from non-fiction books.
  4. Create a Blog Entry that gives the following information.
    1. The title of your book.
    2. The topic of your book…what it is about.
    3. Describe why you chose that topic.
    4. A bulleted list of three things you have learned so far.
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Mon. and Tues., March 6th and 7th: States of Matter

 

CHANGING THE STATES/PHASES OF MATTERchanging_state_p1_1

Changing Phases: How does a substance change from a solid to a liquid to a gas and then back to a liquid and then to a solid? What happens to the substance in order to change states? Use the sites below to help you to answer this question.

JOURNAL REQUIREMENTS– Journal Entry_The Phases of Matter

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