pH Lab after-action review

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​Introduction

Multiple Choice

Which kinds of compounds form H+ ions in solution?

• acid

• base

Multiple Choice

Which kinds of compounds form OH- ions in solution?

• acids

• bases

Multiple Choice

Which scale tells us whether something is acidic or basic?

• temperature

• salinity

• pH

• lumens

Match

Match the following lab words with their definitions.

• acid

• neutral

• base

• solution

• suspension

pH 0-6

pH 7

pH 8-14

uniform mixture of 2+ substances

mixture of liquid and non-dissolved particles

• pH 0-6

• pH 7

• pH 8-14

• uniform mixture of 2+ substances

• mixture of liquid and non-dissolved particles

Word Cloud

What pH did you predict the goat milk would be?

Word Cloud

What pH did you predict the egg white would be?

Word Cloud

What pH did you predict the orange juice would be?

Word Cloud

What pH did you predict the arugula juice would be?

Open Ended

RATIONALE: Why did you make the predictions the way you did?

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​Materials & Methods

Labelling

Label the materials we used in this lab.

Drag labels to their correct position on the image

pH test strip

sample

ruler

scale

test tube

beaker

pH key

Match

Match the vocab word with the example from the pH lab.

• control group

• experimental group

• independent variable

• dependent variable

• neutral pH

all the standard solutions

all the foods

type of food

pH

distilled water

• all the standard solutions

• all the foods

• type of food

• pH

• distilled water

Reorder

Place this lab's methods in order.

• Get a pH test strip with dry hands.

• Dip it in the test sample for 2 seconds.

• Shake any big droplets off the test strip.

• Compare the test strip color to the key.

• Repeat until all samples are tested.

1

2

3

4

5

• 1
• 2
• 3
• 4
• 5

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​Results & Analysis

Word Cloud

What pH was the goat milk?

Word Cloud

What pH was the egg white?

Word Cloud

What pH was the orange juice?

Word Cloud

What pH was the arugula juice?

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Average results:

• Egg white: 10

• Egg yolk: 7

• Goat milk: 7

• Arugula: 8

• Orange: 3

Multiple Choice

What kind of graph should you make for this data?

(Hint: You are comparing between different groups.)

• bar graph

• line graph

• scatterplot

• pie chart

Multiple Select

Which axis would you put pH on? Why?

• x axis

• y axis

• It's the dependent variable.

• It's the independent variable.

Multiple Select

Which axis would you put Food Type on? Why?

• x axis

• y axis

• It's the dependent variable.

• It's the independent variable.

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​Conclusions

Poll

Did this lab help you understand pH?

Open Ended

What do you know now that you didn't know before?

Open Ended

What foods would you test if you could do this lab again? Why?