Denden_3rdQuarter_Science2_Reviewer2

_______ is another source of energy. It is the power that makes the bulb light up and the electric iron produces heat.

• rainbow magic

• fairy dust

• happy thoughts

• electricity

Why is it important to turn off unnecessary lights and unplug unused electronics?

• Because it helps reduce water consumption

• Because it conserves energy and saves money

• Because it makes the room darker and quieter
  

• Because it attracts more bugs into the house

(Choose two correct answers): How do like LED lights help in conserving electricity?

• By using more electricity than traditional bulbs

• By producing less light

• By using less electricity and lasting longer than traditional bulbs

• By emitting harmful gases into the environment

• Because they are energy-efficient

Why is reducing water consumption linked to saving electricity?

• Because water and electricity are the same thing

• Because it helps prevent water pollution

• Because less water usage reduces the energy needed for water treatment and distribution

• Because it causes more floods and damages electronic devices

Which of the following practices contributes to saving electricity?

• Leaving lights and electronics on all day

• Taking long showers with hot water

• Using energy-efficient appliances

• Leaving windows open during winter

(CORRECT or INCORRECT): Ask an adult to plug and unplug electrical appliances when needed.

• CORRECT

• INCORRECT

(CORRECT or INCORRECT): Always touch electrical appliances with wet hands to make them work better.

• CORRECT

• INCORRECT

(CORRECT or INCORRECT): Regularly feeding candy to electrical sockets can make them happy and prevent fires.

• CORRECT

• INCORRECT

(CORRECT or INCORRECT): Playing with fire and objects that easily catch fire is a fun way to learn about heat and light.

• CORRECT

• INCORRECT

(CORRECT or INCORRECT): Ask the help of an adult when using candles and kerosene lamps.

• CORRECT

• INCORRECT