Question

V. Match the following:
a) Louis Pasteur i) nylon, wool

b) Symbiotic bacteria ii) John Dalton

c) Building materials iii) vaccine against rabies

d) Atomic theory iv) mortar, cement

e) Clothing v) rhizobium

vi) penicillin

VI.Give the latin name of the following elements:
a) Iron b) Calcium c) Mercury d) Copper

e) Sodium

VII. Define the following terms:

a) Sedimentation

b) Condensation

c) Gun powder

VIII. Differentiate between the following:
a) Hypothesis and theory

b) Mixtures and compounds.

2) a) When is a hypothesis termed as a theory?
b) Write two differences between homogeneous and heterogeneous mixtures.
c) Draw a flow-sheet diagram showing the classification of science.

d) Compare the three states of matter with respect to:​

Answer 1

Answer:

V. (a) Louis Pasteur_vaccination against rabbit

(b) symbiotic bacteria_rhizobium

(c) building material_mortar cement

(d)Atomic theory_ john dalton

(e) clothing_ nylon wool