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Measurement Explorer 📏
Welcome to Measurement Explorer! In this adventure, you'll learn how to:
📏 Convert between different units of measurement
⚖️ Compare lengths and weights
🌡️ Read temperatures on a thermometer
Complete all sections to earn your Measurement Master badge!
Unit Conversion Basics
Converting between units is like translating between different measurement languages. We use conversion factors to change from one unit to another.
Length Conversions
We use these relationships:
| Centimeters (cm) | Meters (m) | Kilometers (km) |
|---|---|---|
| 100 cm | 1 m | 0.001 km |
| 100,000 cm | 1,000 m | 1 km |
Example: Convert 250 cm to meters
Since 100 cm = 1 m, we divide by 100: 250 ÷ 100 = 2.5 m
Weight Conversions
We use these relationships:
| Grams (g) | Kilograms (kg) |
|---|---|
| 1,000 g | 1 kg |
| 500 g | 0.5 kg |
Example: Convert 3,200 g to kilograms
Since 1,000 g = 1 kg, we divide by 1,000: 3,200 ÷ 1,000 = 3.2 kg
Liquid Volume Conversions
We use these relationships:
| Milliliters (mL) | Liters (L) |
|---|---|
| 1,000 mL | 1 L |
| 500 mL | 0.5 L |
| 250 mL | 0.25 L |
Example: Convert 750 mL to liters
Since 1,000 mL = 1 L, we divide by 1,000: 750 ÷ 1,000 = 0.75 L
Unit Conversion Practice
Fill the big beaker to the target volume using the smaller beakers. Click on a small beaker to add its volume to the big beaker.
Comparing Measurements
Comparing measurements helps us understand which object is longer, shorter, heavier, or lighter.
Comparing Lengths
When comparing lengths, we need to:
- Make sure both measurements are in the same units
- Align the starting points of both objects
- Look at where each object ends
Example: A pencil is 15 cm long and a pen is 180 mm long. Which is longer?
First, convert to same units: 180 mm = 18 cm
15 cm vs 18 cm → The pen is longer by 3 cm
Comparing Weights
When comparing weights, we need to:
- Make sure both measurements are in the same units
- Imagine a balance scale
- The heavier object will tilt the scale downward
Example: A book weighs 0.8 kg and a laptop weighs 1,200 g. Which is heavier?
Convert to same units: 0.8 kg = 800 g
800 g vs 1,200 g → The laptop is heavier by 400 g
Compare Measurements
Tower Builder Game
Reading Temperatures
Temperature tells us how hot or cold something is. We measure it using a thermometer in degrees Celsius (°C) or Fahrenheit (°F).
Understanding Thermometers
Key things to know:
- The liquid inside rises when it's warm and falls when it's cold
- Water freezes at 0°C (32°F)
- Water boils at 100°C (212°F)
Balance the scale by adding weights to the right side. Click on weights to add them, and click on added weights to remove them.