Lab Equipment Identification Worksheet

Let's solve this step-by-step. The task is to match the labeled laboratory equipment (numbered 1 to 22) in the image with their correct names listed in Column A and Column B.

We will go through each numbered item, identify it, and then match it to the correct name from the list.

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Step 1: Identify Each Numbered Item

Here’s what each number represents:

1. Petri dish – a shallow dish used for culturing microorganisms.
2. Erlenmeyer flask – a conical flask with a flat bottom and narrow neck.
3. Funnel – used to pour liquids into containers without spilling.
4. Watch glass – a small, shallow glass dish used to hold solids or as a cover.
5. Corks – stoppers used to seal flasks or bottles.
6. Test tube rack – holds test tubes upright.
7. Test tube holder – clamps to hold a test tube during heating.
8. Mortar and pestle – used to grind substances.
9. Graduated cylinder – measures liquid volume accurately.
10. Thermometer – measures temperature.
11. Dropper (pipette) – delivers small amounts of liquid.
12. Test tube brush – cleans test tubes.
13. Wire gauze – placed on ring stand to support beakers over flame.
14. Spatula – used to transfer solid chemicals.
15. Beaker – a container for mixing, stirring, or heating liquids.
16. Microscope – magnifies small objects.
17. Ring stand – supports lab apparatus like clamps or rings.
18. Slide – a glass plate used with microscope.
19. Balance – measures mass.
20. Bunsen burner – produces a flame for heating.
21. Hot plate – heats substances electrically.
22. Striker – ignites the Bunsen burner.

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Step 2: Match Items to Column A and Column B

Now, we’ll fill in the blanks by matching the numbers to the correct terms.

#### Column A:
- Erlenmeyer flask → 2
- Corks → 5
- Pipette → 11
- Beaker → 15
- Spatula → 14
- Test tube brush → 12
- Bunsen burner → 20
- Watch glass → 4
- Mortar and pestle → 8
- Dropper → 11 (same as pipette)
- Funnel → 3
- Balance → 19

> Note: "Pipette" and "Dropper" are often used interchangeably here; both refer to #11.

#### Column B:
- Test tube holder → 7
- Wire gauze → 13
- Ring stand → 17
- Petri dish → 1
- Hot plate → 21
- Test tube rack → 6
- Test tubes → Not directly labeled, but implied in 6 (the rack holds them), but no individual test tube is shown separately. So likely not needed unless specified.
- Thermometer → 10
- Microscope → 16
- Striker → 22
- Graduated cylinders → 9
- Slide → 18

> Note: "Test tubes" are in the rack (6), but the actual tubes aren't individually labeled. However, since the rack is labeled 6, and test tubes are inside, perhaps they're considered part of it. But in this case, 6 is the test tube rack, so test tubes themselves are not individually numbered. We'll assume that "Test tubes" isn't matched to any single number unless it's implied.

But looking at the image, 6 is clearly a test tube rack, which holds test tubes — so the test tubes are not separately labeled. Therefore, "Test tubes" might not have a direct number unless there's a mistake.

Wait — let's double-check:
In image, 6 is the rack, and there are test tubes inside it, but they are not numbered individually. So perhaps "Test tubes" is meant to be associated with 6? Or maybe not.

But in standard labeling, if the rack is labeled 6, then the test tubes are part of it, but not separately numbered. So unless there's a separate label, we can’t assign a number to "test tubes".

However, looking again — no other object looks like a test tube except those in the rack. So probably, "Test tubes" refers to the tubes in 6, so we can say 6 corresponds to test tube rack, and test tubes are included in that setup.

But since the question asks to match the equipment, and 6 is labeled as the test tube rack, then:

→ Test tube rack → 6
→ Test tubes → ? — Not individually labeled. But perhaps the task assumes only labeled items are matched.

So we proceed with the labeled ones.

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Final Matching:

#### Column A:
- Erlenmeyer flask → 2
- Corks → 5
- Pipette → 11
- Beaker → 15
- Spatula → 14
- Test tube brush → 12
- Bunsen burner → 20
- Watch glass → 4
- Mortar and pestle → 8
- Dropper → 11
- Funnel → 3
- Balance → 19

#### Column B:
- Test tube holder → 7
- Wire gauze → 13
- Ring stand → 17
- Petri dish → 1
- Hot plate → 21
- Test tube rack → 6
- Test tubes → (not labeled individually) → possibly 6 is the rack, so test tubes are part of it
- Thermometer → 10
- Microscope → 16
- Striker → 22
- Graduated cylinders → 9
- Slide → 18

Note: "Graduated cylinders" is plural, but only one is shown (#9). Still, #9 is a graduated cylinder.

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Final Answer:

Now, write the numbers in front of each term.

#### Column A:
1. Erlenmeyer flask → 2
2. Corks → 5
3. Pipette → 11
4. Beaker → 15
5. Spatula → 14
6. Test tube brush → 12
7. Bunsen burner → 20
8. Watch glass → 4
9. Mortar and pestle → 8
10. Dropper → 11
11. Funnel → 3
12. Balance → 19

#### Column B:
1. Test tube holder → 7
2. Wire gauze → 13
3. Ring stand → 17
4. Petri dish → 1
5. Hot plate → 21
6. Test tube rack → 6
7. Test tubes → (No separate number; likely part of 6) → leave blank or note as not individually labeled
8. Thermometer → 10
9. Microscope → 16
10. Striker → 22
11. Graduated cylinders → 9
12. Slide → 18

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✔ Final Filled-in Answers:

#### Column A:
```
2 Erlenmeyer flask
5 Corks
11 Pipette
15 Beaker
14 Spatula
12 Test tube brush
20 Bunsen burner
4 Watch glass
8 Mortar and pestle
11 Dropper
3 Funnel
19 Balance
```

#### Column B:
```
7 Test tube holder
13 Wire gauze
17 Ring stand
1 Petri dish
21 Hot plate
6 Test tube rack
(No number) Test tubes
10 Thermometer
16 Microscope
22 Striker
9 Graduated cylinders
18 Slide
```

> Note: "Test tubes" is not individually labeled, so it cannot be matched to a specific number. It is contained within the test tube rack (6), but not a separate item.

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Summary:

You match each term to its corresponding number based on the image. Most items are correctly identified, and only "Test tubes" lacks a standalone label.

✔ This completes the matching task.