Name IB Chemistry 1 Summer Assignment Graphing and | Chegg.com - Free Printable

Let’s work through each part of the task step by step.

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Part 3: BAR GRAPH — Hours of Study vs Grade

We are given:

| # of Hours of Study | Grade of Study |
|---------------------|----------------|
| 0 | 20 |
| 2 | 60 |
| 4 | 70 |
| 6 | 80 |
| 8 | 90 |
| 10 | 100 |

✔ Step 1: Identify variables
- Independent variable = what you control or change → # of Hours of Study (x-axis)
- Dependent variable = what changes as a result → Grade of Study (y-axis)

✔ Step 2: Choose scale for axes
- X-axis: from 0 to 10 hours → label every 2 units: 0, 2, 4, 6, 8, 10
- Y-axis: grades go from 20 to 100 → let’s start at 0 and go to 100 in increments of 10 or 20. Since grid has about 10–12 boxes vertically, use increments of 10: 0, 10, 20, ..., 100

✔ Step 3: Draw bars
For each hour value, draw a bar up to the corresponding grade:
- At 0 hrs → bar height = 20
- At 2 hrs → bar height = 60
- At 4 hrs → bar height = 70
- At 6 hrs → bar height = 80
- At 8 hrs → bar height = 90
- At 10 hrs → bar height = 100

✔ Trend: As study time increases, grades increase. So trend is: “Grades improve with more hours of study.”

✔ Average grade earned?
Add all grades:
20 + 60 + 70 + 80 + 90 + 100 =
→ 20+60=80; 80+70=150; 150+80=230; 230+90=320; 320+100=420
Divide by 6 (number of data points):
420 ÷ 6 = 70

So average grade = 70

✔ Appropriate title?
Something like: *“How Study Time Affects Grades”* or *“Effect of Hours Studied on Grade Earned”*

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Part 4: LINE GRAPH — Temperature vs Enzyme Activity

Given:

| Temperature | Enzyme Activity |
|-------------|------------------|
| 0 | 0 |
| 20 | 10 |
| 30 | 15 |
| 40 | 20 |
| 50 | 8 |
| 60 | 5 |
| 70 | 0 |

✔ Step 1: Identify variables
- Independent variable = temperature (you set this) → x-axis
- Dependent variable = enzyme activity (changes based on temp) → y-axis

✔ Step 2: Scale axes
- X-axis: 0 to 70 → mark every 10: 0, 10, 20, 30, 40, 50, 60, 70
- Y-axis: 0 to 20 → mark every 5: 0, 5, 10, 15, 20

✔ Step 3: Plot points and connect with lines
Plot each pair:
(0,0), (20,10), (30,15), (40,20), (50,8), (60,5), (70,0)

Then draw straight lines between them.

✔ Trend: Enzyme activity rises until 40°C, then drops sharply after that. So trend is:
“Enzyme activity increases with temperature up to 40°C, then decreases rapidly.”

✔ Appropriate title?
*“Effect of Temperature on Enzyme Activity”*

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Now, answering the questions directly:

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Final Answer:

3. BAR GRAPH QUESTIONS:

1. Independent variable: # of Hours of Study
2. Dependent variable: Grade of Study
3. Appropriate title: “Effect of Study Time on Grade”
4. Average grade earned: 70

Trend: *As hours of study increase, grades increase.*

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4. LINE GRAPH QUESTIONS:

1. Independent variable: Temperature
2. Dependent variable: Enzyme Activity
3. Appropriate title: “Effect of Temperature on Enzyme Activity”

Trend: *Enzyme activity increases up to 40°C, then decreases as temperature goes higher.*