Useful
and Harmful Materials
I. Learning Competency: Use
the properties of materials whether they are useful or harmful. S5MT-Ia-b-1
LO2:
Classify the materials found in the environment according to farm chemicals and
reagents food. LO2 S5MT-Ia-b-1.2
II. Directions:
A. Group the materials
according to agriculture chemicals and reagents products for food.
III. Classify the following materials:
Write Farm chemical or Reagents food on the space provided.
IV: Remember:
Materials
found in the environment according to use:
A.
Farm chemicals- It refers to any substance involved in the growth or utilization
of any plant or animal of economic importance to humans. The agricultural
chemicals now in use include fertilizers, pesticides, growth regulators, animal
feed supplements and raw materials.
B.
Reagents food-
References:
Answers Key:
A. Farm Chemicals Reagent Food
Insecticides Citric
acid
Fertilizers Food
colour
Solvents Starch
solution
Fungicides Sodium
nitrate
Salt
B. 1. Reagent food
2. Farm chemical
3. Reagent food
4. Reagent food
5. Farm chemical
6. Reagent food
7. Reagent food
8. Farm chemical
9. Farm chemical
10. Farm chemical
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