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pH-Digestion and Acid Rain

Authored by Patti Lindstrom

Science

7th - 8th Grade

NGSS covered

Used 10+ times

pH-Digestion and Acid Rain
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25 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Tomato juice is an acid, therefore which of the following is a property of tomato juice?

Turns litmus blue

Tastes sour

Does not react with metals

feels slippery

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

2. What is the pH of the stomach?

2

4

7

8

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which is true about mechanical digestion

Happens mostly in the small intestines

it involves ONLY chemicals

it happens ONLY in the stomach

it involves ONLY breaking large pieces of food into smaller pieces

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is another name for spit?

stomach acid

pepsin

adrenalin

saliva (amylase)

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which statement is true about digestion?

The body breaks down food only into small pieces and then stops.

The digestive process uses chemical digestion only.

The digestive process happens only in the stomach.

The digestive process happens in the mouth, stomach, and the small intestines.

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Ammonia is a base with a pH around 11.5. Which statement is therefore correct about ammonia? It would ..

be sour

feel slippery

react with metals

have a similar pH to the stomach.

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What part of the digestive system does chemical digestion occur?

mouth and stomach

stomach and small intestines

small intestines and mouth

mouth, stomach, and small intestines

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