Classifying Mixtures Lab (Different Versions for different Classes)

Station #	Substance	Appearance: Provide observations	Pure Substance or Mixture	If it is a mixture… is it homogeneous? heterogeneous?
1	Sugar	White, grains, very small, solid, crystals, rectangular	Pure substance
2	Plasticene	Pink, soft, doughy,	Mixture	Heterogeneous
3	Iron filings	Rock like, magnetic, grey, metallic	Pure substance
4	Potassium permanganate	Small, purple, grains	Pure substance
5	Drink crystals	Small pink, crystals, smelled like fruit	Mixture	Heterogeneous
6	Candy cane	Blue, smelled sweet, sticky, white	Mixture	Heterogeneous
7	Food colouring and water	Blood red, liquid, clear	Mixture	Homogeneous
8	Corn kernels	Shell, yellow and white, solid, hard	Mixture	Heterogeneous
9	Sand	Many different types of rocks	Mixture	Heterogeneous
10	Dish soap	Orange, liquid, looked soapy	Mixture	Homogenous
11	Pencil shavings	Shredded pencils, different colours	Mixture	Heterogeneous
12	Copper sulfate	Small blue crystals,	Pure substance
13	All-purpose flour	White powder,	Mixture	Heterogeneous
14	Paint	Green, liquid, thick, opaque	Mixture	homogenous

Station #	Substance	Appearance: Provide observations	Pure Substance or Mixture	If it is a mixture… is it homogeneous? heterogeneous?
1	Sugar	Clear white grains, crystals, rectangular, translucent	Pure
2	Salt	Smelled like salt, small round crystals, translucent	Pure
3	Iron	Rock like, grey, metallic	Pure
4	Potassium permanganate	Small purple rocks	pure
5	Drink crystals	Small coloured crystals, pink	Mixture	Heterogeneous
6	Candy cane	Blue, white, shiny, solid, cylindrical	Mixture	Heterogeneous
7	Food colouring and water	Red, clear, liquid	Mixture	Homogeneous
8	Corn kernels	Yellow, spherical shape, shell, hard, solid,	Mixture	Heterogeneous
9	Sand	Many different types of rocks, different colours	Mixture	Heterogeneous
10	Dish soap	Orange scented, orange, liquid	Mixture	Homogeneous
11	Pencil shavings	Shredded wood, different colours	Mixture	Heterogeneous
12	Copper sulfate	Small blue crystals,	Pure substance
13	All-purpose flour	White powder	Mixture	Heterogeneous
14	Paint	Green liquid, opaque,	Mixture	homogenous

Bangladesh Water Crisis Video Viewed in Class

Articles about the Water Crisis in Bangladesh

Water.org

http://water.org/country/bangladesh/

Reuters

http://www.reuters.com/article/us-bangladesh-rivers-idUSTRE54I04G20090519

The New York Times

http://www.nytimes.com/2013/07/15/world/asia/bangladesh-pollution-told-in-colors-and-smells.html?_r=1

Independent Variable, Dependent Variable, Controlled Variables and Control

Qualitative and Quantitative Observation Videos

Review Video of Observations vs. Inferences

Scientific Method Test Study Guide

The Scientific Method Test Study Guide

1.       Review the lab guideline: You should know the order of steps and what is included in each part of the lab

2.       Review how to properly format a hypothesis (an if, then statement); remember a hypothesis needs to be testable!

3.       Review the difference between qualitative and quantitative observations; you should also know why our observations should be as accurate and objective as possible

4.       Review the difference between observations and inferences

5.       Review the three types of variables: independent, dependent and controlled variables

6.       You will be provided a science lab scenario to read; you will be required to answer questions related to the scientific method based on the scenario

Use your lab guideline and introduction package to review the concepts above.