Physical and chemical properties and changes

Answer Key - Grade 10 Science Worksheet - Building Confidence

Circle the best answer, or write your answer on the line.

1. 1.

   A metal block has a mass of 54 g and a volume of 20 cm³. What is its density, Ari?

   2.7 g/cm³
2. 2.

   A metal block has a mass of 89.6 g and a volume of 10 cm³. What is its density, Bo?

   8.96 g/cm³
3. 3.

   A metal block has a mass of 15.8 g and a volume of 2 cm³. What is its density, Esme?

   7.9 g/cm³
4. 4.

   Particle box before and after, two changes. In the particle boxes, what kind of change is Change A, Jun?

   • Chemical: brand-new particles
   • Physical: the same particles
   • Nothing changed in the box
5. 5.

   Is ice melting into water a physical or a chemical change, Milo?

   • Chemical
   • Physical
   • Neither
6. 6.

   Is an iron nail rusting a physical or a chemical change, Noah?

   • Neither
   • Physical
   • Chemical
7. 7.

   Is water boiling into steam a physical or a chemical change, Pia?

   • Physical
   • Chemical
   • Both at once
8. 8.

   Is the color of copper a physical or a chemical property, Ren?

   • A physical property
   • A chemical property
   • Not a property
9. 9.

   Iron rusts in damp air. Is that a physical or a chemical property, Tala?

   • A physical property
   • A chemical property
   • A measurement unit
10. 10.

    Which of these is a physical property of water, Zee?

    • Its density
    • Its ability to burn
    • Its reaction with iron