Experiment: Acid and Litmus Paper

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  • Topic: Acid, Water, Measuring cup
  • Pages : 6 (1295 words )
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  • Published : February 18, 2013
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1ST SIX WEEKS PERIOD
Unit A Chapter 1 Lesson 2 Classifying Plants
Modeling Water Transport
Material:
* small sponge,
* pie tin,
* water,
* glass,
* red food coloring,
* celery stalk.
Procedure
1. Pour a cup of water into the pie tin and the glass. Add food coloring to the glass. 2. Have a student place the sponge in the pie tin and the celery stalk in the glass. 3. After 24 hours, ask students how the sponge and celery model water transport systems in plants.

1ST SIX WEEKS PERIOD
Unit A Chapter 1 Lesson 2 Classifying Plants
Modeling Water Transport
Material:
* small sponge,
* pie tin,
* water,
* glass,
* red food coloring,
* celery stalk.
Procedure
4. Pour a cup of water into the pie tin and the glass. Add food coloring to the glass. 5. Have a student place the sponge in the pie tin and the celery stalk in the glass. 6. After 24 hours, ask students how the sponge and celery model water transport systems in plants.

2ND SIX WEEKS PERIOD
Unit A Chapter 2 Lesson 3 Cells and Diseases
How Does Diseases Affect Cell
Material:
* 1 measuring cup (250 mL)
* Hot water
* 1 chiken bouillon cube
* 3 small clear cups
* 1 measuring spoon (5mL)
* White vinegar
* Masking tape
* Marking pen
* Table salt
Procedure
1. Fill the measuring cup with hot water from the faucet. Add the bouillon cube and wait for it to dissolve. Divide the solution equally among the three cups. 2. Add one spoonful of vinegar to the first cup. Using masking tape and pen, mark the cup “vinegar”. Add one spoonful of salt to the second cup. Mark that cup “Salt”. DO not add anything to the third cup. Mark that cup “Control.” Cover the three cups and store them in a warm place. 3. Observe the cups after two, three, and four days. Compare how clear the liquid is in different cups. 4. Which cup has the clearest liquid? Which cup has the cloudiest liquid? Record observations in a chart.

2ND SIX WEEKS PERIOD
Unit A Chapter 2 Lesson 3 Cells and Diseases
How Does Diseases Affect Cell
Material:
* 1 measuring cup (250 mL)
* Hot water
* 1 chiken bouillon cube
* 3 small clear cups
* 1 measuring spoon (5mL)
* White vinegar
* Masking tape
* Marking pen
* Table salt
Procedure
5. Fill the measuring cup with hot water from the faucet. Add the bouillon cube and wait for it to dissolve. Divide the solution equally among the three cups. 6. Add one spoonful of vinegar to the first cup. Using masking tape and pen, mark the cup “vinegar”. Add one spoonful of salt to the second cup. Mark that cup “Salt”. DO not add anything to the third cup. Mark that cup “Control.” Cover the three cups and store them in a warm place. 7. Observe the cups after two, three, and four days. Compare how clear the liquid is in different cups. 8. Which cup has the clearest liquid? Which cup has the cloudiest liquid? Record observations in a chart.

3RD SIX WEEKS PERIOD
Unit E Chapter 14 Lesson 4 Acids and Bases
What are Acids and Bases?
Materials:
* Stirring rod
* Vinegar
* Blue and red litmus paper
* Solution of baking soda in water
* Lemon juice
* Apple juice
* Ammonia solution
Procedure:
1. Predict whether each of the following liquids is an acid or a base: vinegar, solution of baking soda, lemon juice, apple juice, and ammonia solution. 2. Using a stirring rod, place one small drop of vinegar on a piece of blue litmus paper and one small drop on red litmus paper. Observe and record any color changes. Rinse and dry the stirring rod. 3. Repeat step 2 for the other liquids. Remember to use fresh pieces of litmus paper for each liquid. 4. Blue litmus paper turns red in the presence of an acid. Red litmus paper turns blue in the presence of a base. Classify each liquid as an acid or a base.

3RD SIX WEEKS PERIOD
Unit E Chapter 14 Lesson 4 Acids and Bases
What...
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