Problem Description:
The task is to measure the length of each pencil shown in the image using a ruler and record the measurements in the provided boxes.
Solution Approach:
1.
Identify the Ruler Scale: The ruler in the image is marked in centimeters (cm), with each major division representing 1 cm and smaller divisions likely representing millimeters (mm).
2.
Measure Each Pencil:
- Align the left end of each pencil with the 0 cm mark on the ruler.
- Observe where the right end of the pencil falls on the ruler.
- Record the measurement in the corresponding box.
3.
Perform the Measurements:
-
Pencil 1: The red pencil starts at 0 cm and ends just before the 8 cm mark. The exact measurement appears to be
7.5 cm.
-
Pencil 2: The orange pencil starts at 0 cm and ends exactly at the 9 cm mark. The measurement is
9 cm.
-
Pencil 3: The yellow pencil starts at 0 cm and ends just before the 4 cm mark. The exact measurement appears to be
3.5 cm.
-
Pencil 4: The green pencil starts at 0 cm and ends just before the 7 cm mark. The exact measurement appears to be
6.5 cm.
-
Pencil 5: The blue pencil starts at 0 cm and extends beyond the 10 cm mark. The exact measurement appears to be
11 cm.
4.
Record the Measurements:
- Pencil 1: 7.5 cm
- Pencil 2: 9 cm
- Pencil 3: 3.5 cm
- Pencil 4: 6.5 cm
- Pencil 5: 11 cm
Final Answer:
\[
\boxed{7.5 \text{ cm}, 9 \text{ cm}, 3.5 \text{ cm}, 6.5 \text{ cm}, 11 \text{ cm}}
\]
Explanation:
- Each pencil's length was determined by aligning its left end with the 0 cm mark and reading the position of its right end on the ruler.
- Precision was maintained by observing the smaller divisions on the ruler for more accurate measurements.
- The results were recorded in the order of the pencils as presented in the worksheet.
Parent Tip: Review the logic above to help your child master the concept of science length worksheet for 7th graders.
