1. Burning of paper is the best example of _____ change. 2. _____ is the branch of science which deals with the study of particles around us.

Question

Fill up the blanks:

1. Burning of paper is the best example of _____ change.

2. _____ is the branch of science which deals with the study of particles around us.

3. Salt is a combination of the chemicals and .

4. We could prepare soft idly as a result of a chemical change named _____ takes place in the idly batter.

5. We are using _____ to remove strong stains on the clothes.

6. _____ help plant grow and restore soil fertility.

7. _____ is the organic tertillzer.

8. _____ invented Portland cement.

9. _____ is the medicine for skin problems.

10. Calcium sulphate hemihydrate is called as _____

11. _____ is used in mouthwash in low concentrations.

12. The adhesive used in puncture shop is _____

Answer 1

1. Chemical

2. Chemistry

3. Sodium, Chlorine

4. fermentation

5. Wash powder

6. Organic fertilizers

7. Compost

8. Joseph Aspdin

9. Epsom

10. Plaster of parisl

11. Pheno

12. Artificial adhesivel