Creating Your Own Experiment

THE CONTROL– The following video is our “control experiment”. All student experiments will be changing one variable (the independent variable) and will be measuring a specified reaction.

WHY DO THEY REACT? http://scienceline.ucsb.edu/getkey.php?key=4147

Asking a Scientific Question:

Variables- https://nces.ed.gov/nceskids/help/user_guide/graph/variables.asp

Scientific Variables- https://www.youtube.com/watch?v=nzfDvfoBv_g

Posted in Uncategorized | Leave a comment

Monday, March 26: Chemical Changes Continued

CRASH COURSE: WHAT IS A CHEMICAL CHANGE? https://www.youtube.com/watch?v=37pir0ej_SE

Bozeman Science: Physical and Chemical Changes– http://www.bozemanscience.com/physical-chemical-changes/

EXAMPLES OF PHYSICAL AND CHEMICAL CHANGES

LAB INFORMATION RESOURCES

BAKING SODA PROPERTIES

VINEGAR PROPERTIES

CREATING A CHEMICAL REACTION

  • 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.
Posted in Uncategorized | Leave a comment

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

physical-and-chemical-properties

What are CHEMICAL CHANGES and PROPERTIES?

CHEMICAL PROPERTIES: 

  • Definition (on top of flap)– Properties that can be observed during or after a chemical reaction. The substance is changed to a NEW substance.
  • Examples (under flap)– How easily something catches fire (flammability), decomposition (if something will rot and break down), reactivity with air or water (rust is an example), how toxic it might be.

CHEMICAL CHANGES- 

  • Definition (on top of flap)
    • A substance changes into a new substance with different properties.
    • Substances present at the beginning of the change are NOT present at the end.
    • Can’t or is very difficult to undo!
  • Evidence of a Chemical Change (under flap)- http://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

591f3c6d0fe1943d6ac2d960f7263a09

EXAMPLES OF PHYSICAL AND CHEMICAL CHANGES

LET’S PLAY (Use Chrome)

 

 

LAB INFORMATION RESOURCES

Baking Soda

Posted in Uncategorized | Leave a comment

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

Posted in Uncategorized | Leave a comment

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.

Posted in Uncategorized | Leave a comment

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

Posted in Uncategorized | Leave a comment

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

Posted in Uncategorized | Leave a comment