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Yeast Lab Procedures Review

Total questions: 12

Worksheet time: 6mins

Name
Class
Date
1.

Yeast is a...

a)

bacteria

b)

microscopic fungus

c)

plant

d)

animal

2.

Before beginning the experiment, make sure to

a)

Wash your hands

b)

Clean your area

c)

Tie back long hair and secure loose clothing

d)

All of the above

3.

Which one of these is NOT on the materials list?

a)

A 16.9 oz water bottle

b)

A 9-inch balloon

c)

A box of tissues

d)

A set of measuring spoons

4.

How many packets of yeast are we using in our test?

a)

One

b)

Two

c)

Three

d)

One half

5.

How many tablespoons of sugar are we using?

a)

One

b)

Two

c)

Three

d)

Four

6.

When adding water to our bottle, make sure it is...

a)

Cold

b)

Warm

c)

Hot

7.

When the yeast is growing, we need to stop every ___ minutes to collect qualitative and quantitative data

a)

Two

b)

Five

c)

Ten

d)

Fifteen

8.

Which one is an example of a QUALITATIVE observation we can make about our yeast?

a)

"It sounds like fizzing or popping, like rice krispies"

b)

"The balloon is 15cm around"

9.

Measuring the amount of CO2 in the balloon is an example of

a)

QUALitative data

b)

QUANTitative data

10.

During the experiment, data should be recorded

a)

In our memories

b)

On a separate sheet of paper

c)

In the team data spreadsheet

d)

In an email

11.

When you are finished, you should

a)

wipe down your area

b)

throw away any trash or packaging

c)

rinse the yeast mixture down the drain with water

d)

wash your tools and put them away

e)

All of the above!

12.

The scientific purpose of this lab is to

a)

watch the yeast expand

b)

determine what kind of sugar the yeast will like the best

c)

learn a new trick to show our families