Question

NEW INDIAN MODEL SCHOOL, SHARJAH
INVESTIGATORY PROJECT
GRADE-7
EXPERIMENT
Test PH using red cabbage.
SKILLS FOCUS
Observing, developing hypothesis, analysis and inference.
THEORY
In order to test PH, indicators ,acids and alkaline solutions are required.

HYPOTHESIS
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MATERIALS
Red cabbage, pot(bowl), water, gas stove, strainer,jug,marker, 7 paper cups, spoon, vinegar, lemon juice, milk, 7-up, sprite, baking soda,windex.


Reference information

acids = low pH (0-7) bases = high pH (7-14)
Cabbage Indicator
Cabbage Color pH
red 2
purple 4
violet 6
blue 8
blue-green 10
greenish-yellow 12



Data Gathering

1. Pour a small amount of the red cabbage indicator liquid into each of the seven cups of different liquids. Add just enough indicator until you see a color change. Record your observations, and rank them based on their pH, using this scale:
1 = lowest pH, 7 = highest pH

Solution Colour Cabbage Colour pH Ranking
lemon juice
baking soda
milk
vinegar
soda
Windex
water

2. Use pH-indicator strips to measure and record the pH values in the table, below.

Solution Strip Colour pH
lemon juice
baking soda
milk
vinegar
soda
Windex
water





ANALYSIS
1. How did your cabbage pH indicator values compare to pH indicator strip values?


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2. What other acids and bases do we encounter every day?

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2. For what other liquids are you curious about their pH values?

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Conclusion
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Critical thinking and Application
1. How are acids helpful maintaining our good health?
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EVALUATION
POINTS PEER/ SELF EVALUATION TEACHER EVALUATION
1 2 3 4 5 1 2 3 4 5
EXPERIMENTAL ACTIVITY FOLLOWED ALL ACTIVITIES SAFELY
OBSERVED AND MEASURED CAREFULLY
WORKED IN COOPERATION WITH OTHERS
CLEANED UP WORK AREA AND EQUIPMENT
EXPERIMENTAL REPORT CORRECTLY RECORDED DATA
MADE APPROPRIATE CONCLUSION
DISPLAYED ALL SKILL FOCUS
ANALYSIS AND APPLICATION
TOTAL
SIGN
REMARKS

Answer 1

Answer:

Find some examples from your surroundings for the following with images. (i) Where lines intersect at right angles. (ii) Parallel Lines (iii) Transversal  The presentation should be done in PowerPoint.  The images of each type should be included with description.  Name, Class, Section, Admission number, Subject and Topic should be mentioned in the presentation. (pls helps me, in this question i should to it in a powerpoint presentation