1st 9 Weeks Science Benchmark Review
What should be done if a glass beaker falls to the floor? Don’t touch it and tell the teacher
What is a safety tool that is used to protect your clothing? Apron
What is a safety tool used to protect your hands? Gloves
Susan wants to see how the length of a pencil will affect its mass Susan wants to see how the length of a pencil will affect its mass. What 2 tools will she need? Length = Ruler or Measuring Tape Mass = Triple Beam Balance
What is the volume? 14 mL
Which of these has more mass? Colored Pencil or Bottle of Water
How many times should an experiment be performed to increase accuracy? At least 3, the more trials you perform, the better results you will get.
Explain what “dissolve” means and give an example. Dissolve means to mix evenly with a liquid Example- Sugar dissolves in water
What would happen if I added 10mL of salt to 3 liters of water and stirred the solution? The salt would dissolve, becoming evenly mixed in the water
What is the boiling point of pure water What is the boiling point of pure water? What is the melting/ freezing point of pure water? Boiling- 100 Melting/ Freezing- 0
A chocolate bar is placed in the sun. After a while it becomes a liquid. Why? Heat is added to the chocolate bar causing it to melt.
Name an object that uses electrical energy but produces light energy Possible answers: light bulb, TV, lamp, etc.
Sound it produced by… VIBRATIONS
Give an example of mechanical energy. A bicycle
Name an item that produces thermal energy. Possible answers: Toaster, stove, hair dryer, etc.
Electrical circuits can produce what 3 types of energy? Light, Heat, Sound
Draw a picture of a closed circuit that is producing light Draw a picture of a closed circuit that is producing light. Include a switch
Why is this circuit not generating electromagnetic energy? Because the switch is open
Sally has a broken circuit Sally has a broken circuit. What could Sally use to complete her circuit? Anything metal; nail, aluminum foil, paperclip, etc.