Grade 4 science quiz: Temperature and thermometers.

🌡️ Quick Study Guide

• 🔥 Temperature is a measure of how hot or cold something is.
• 🔬 Thermometers are used to measure temperature.
• 💧 Common temperature scales are Celsius (°C) and Fahrenheit (°F).
• 🧊 Water freezes at 0°C (32°F) and boils at 100°C (212°F).
• 🌡️ Thermometers work because substances expand when heated and contract when cooled.

🧪 Practice Quiz

1. Which of the following best describes temperature?
   1. A measure of how heavy something is.
   2. A measure of how hot or cold something is.
   3. A measure of how long something is.
   4. A measure of how sweet something is.
2. What instrument is used to measure temperature?
   1. Ruler
   2. Scale
   3. Thermometer
   4. Clock
3. On the Celsius scale, at what temperature does water freeze?
   1. 100°C
   2. 50°C
   3. 0°C
   4. 212°C
4. On the Fahrenheit scale, at what temperature does water boil?
   1. 0°F
   2. 32°F
   3. 100°F
   4. 212°F
5. What happens to most substances when they are heated?
   1. They contract
   2. They expand
   3. They stay the same
   4. They disappear
6. Which of the following is NOT a common type of thermometer?
   1. Liquid-filled thermometer
   2. Digital thermometer
   3. Oven thermometer
   4. Smell-o-meter
7. If the temperature is very high, is it hot or cold?
   1. Cold
   2. Hot
   3. Warm
   4. Freezing