Download Chemical and Physical Properties Webquest

Chemical and Physical Properties Webquest
Introduction and Task:
Everything around us has physical and chemical properties. But what are physical and chemical properties, and
how can you tell the difference? In this WebQuest you will find out what physical and chemical properties are.
Then you will look at different objects and activities to determine what their physical and chemical properties
are. After you have finished, you can answer the final question.
Part I: Definitions
Use your notes to find the definition of:
Physical Property:
Chemical Property:
Part II: Your Glowing Teeth
Read through the article to answer the following questions:
1. What property causes substances to glow or become luminous, when they are scratched, crushed or rubbed?
2. Is triboluminescence a physical property or chemical property?
3. What kind of lifesaver is an example of this property?
Part III: The Death of Pizza
Look at how pizza goes through your digestive system at the Yucky! site and answer the following questions:
1. What starts chemical changes in food?
2. Are the following Physical or chemical changes?
_____The teeth tear off a bite of pizza.
_____The starch in the pizza crust turns to sugar.
_____Muscles squeeze the chewed pizza down your esophagus.
_____In the intestines, liquids from the kidneys and pancreas mix with leftovers
from the stomach.
_____Water is recycled back into your body.
Look at the rock cycle at these two sites.. Are the following physical or chemical changes?
http://www.cotf.edu/ete/modules/msese/earthsysflr/rock.html
http://www.personal.psu.edu/users/c/l/cll161/insys%20441/review.htm
1. Weathering:
2. Deposition:
3. Metamorphism:
4. Melting:
5. Describe the chemical reaction that creates sedimentary rocks:
6. Are Igneous rocks formed from a chemical or physical change? _____________
Explain your answer:
Part V: You Are My Sunshine
Look at this description of the sun. Are the following descriptions of the sun chemical or physical properties?
1. _____________ The sun is a huge ball of hot spinning gases.
2. _____________ The sun has dark magnetic fields called sun spots.
3. _____________ The sun causes solar winds.
Part VI: There's a Fungus Among Us
Take a look at the world of fungi. Are the following chemical or physical properties?
1. ___________ Many Club Fungi look like umbrellas growing from the ground.
2. ___________ Some Club Fungi are deadly or hallucinogenic.
3. ___________ Sac fungi help produce beer and bread.
4. ___________ All lichens but one are believed to be non-poisonous.
5. ___________ Old Man's Beard is a green-gray lichen that hangs from trees.
6. ___________ Black morels, a Sac Fungi, look like pebbles or pine cones.
Part VII: The Final Question:
Look around you right now. Describe something near you using words that describe a physical property, then
something near you using words that describe a chemical property.