Page 146 - Science Class 6 Times Publication

iii. Black pepper iv. All of these

b. The chemical name of common salt is

i. Sodium chloride ii. Citric acid
iii. Calcium chloride iv. Magnesium chloride

c. Which sentence is incorrect about turmeric powder?

i. It is prepared from the leaves of a turmeric powder.

ii. Hot soup of turmeric and cumin seeds is used to treat
common cold.

iii. Turmeric powder is used in cosmetics and medicine.

iv. It contains nutrients such as proteins, carbohydrates,
minerals, vitamins and  bres.

d. The main chemical found in baking powder is
i. Sodium chloride ii. Sodium bicarbonate
iii. Sodium carbonate iv. Potassium chloride

e. The use of iodized salt helps to prevent a disease named

i. Marasmus ii. Scurvy

iii. Goitre iv. Beri-beri

2. Answer these questions in very short:
a. What is the chemical name of common salt?

b. Name the part of turmeric plant from which turmeric powder
is made.
c. Name the enzyme produced by yeast.

d. What is the chemical name of baking soda?
e. What is chook?

f. Name the fruits from which sour juice (chook) is obtained.
g. What does yeast contain?

Times' Crucial Science and Environment 142 Book 6