Imprimir Froggy Jumps: Science ()

1. Phenolphthalein gives ____ and____colour with acid and base respectively.

A

Pink and colourless

B

Colourless and pink

C

Pink and orange

2. When the soil is too acidic, it is treated with ______

A

Organic matter

B

Compost

C

Calcium oxide (quick lime)

3. Milk of magnesia is_____

A

Magnesium oxide

B

Magnesium chloride

C

Magnesium hydroxide

4. Calamine solution contains

A

Zinc carbonate

B

Zinc oxide

C

Sodium Hydrogen carbonate

5. Wool is a _____ conductor of heat

A

Poor

B

Good

C

Excellent

6. Mercury is a ______ substance and a good_______ of heat.

A

Toxic and conductor

B

Toxic and insulator

C

Mineral and insulator

7. Bile plays an important role in the digestion of _____

A

Starch

B

Fat

C

Acid

8. _______ found the stomach was churning food.

A

William Beaumont

B

Martin

C

Gregor mendel

9. Organisms live together and share both shelter and nutrients are called_____

A

Symbiosis

B

Saptrotroph

C

Lichens

10. Grass is rich in____

A

Vitamins

B

Minerals

C

Cellulose

11. _____ lens is used in magnifying glass

A

Convex

B

Cancave

C

Plane

12. _____ mirror is used as dentist mirror.

A

Concave

B

Convex

C

Flat

13. Real image is possible with ____ mirror

A

Plane

B

Convex

C

Concave