Grade 3 physical changes of matter quiz with answers.

📚 Quick Study Guide

🔍 Physical Change: A change in matter that doesn't alter its chemical composition. Think changes in size, shape, or state. No new substance is formed! 🧊 Melting: The process of a solid changing into a liquid due to an increase in temperature. 💧 Freezing: The process of a liquid changing into a solid due to a decrease in temperature. 🔥 Boiling/Evaporation: The process of a liquid changing into a gas due to an increase in temperature. 💨 Condensation: The process of a gas changing into a liquid due to a decrease in temperature. 🧱 Examples: Tearing paper, melting ice, boiling water, dissolving sugar in water (though this can be tricky!), crushing a can. 💡 Key Idea: The substance is still the same substance, just in a different form. For example, frozen water (ice) is still $H_2O$!

🧪 Practice Quiz

1. What is a physical change?
   1. A change that creates a new substance.
   2. A change in size, shape, or state without changing what the substance is.
   3. A change that only happens with fire.
   4. A change that only happens with water.
2. Which of the following is an example of melting?
   1. Water turning into ice.
   2. Ice turning into water.
   3. Water turning into steam.
   4. Steam turning into water.
3. What happens to water when it freezes?
   1. It turns into steam.
   2. It turns into ice.
   3. It disappears.
   4. It turns into fire.
4. Which process involves a liquid turning into a gas?
   1. Freezing
   2. Melting
   3. Boiling
   4. Condensing
5. What is condensation?
   1. Gas turning into a liquid.
   2. Liquid turning into a gas.
   3. Solid turning into a liquid.
   4. Liquid turning into a solid.
6. Tearing a piece of paper is an example of what kind of change?
   1. Chemical Change
   2. Physical Change
   3. Nuclear Change
   4. Magical Change
7. If you dissolve sugar in water, is it a physical or chemical change?
   1. Chemical Change
   2. Physical Change
   3. Both
   4. Neither