|. Write T if the statement is true. If it is a false, change the underlined word to make the statement correct. Write your answer on a piece of paper.
_____ 1. The standard unit of measurement of distance or length in metric system is miles.
_____ 2. Meter stick, tape measure, and sturdy rope are some of the standard tools in
measuring distance.
_____3. Yard, foot and inch are units of measurement used in the metric system of
measurement.
_____ 4. The measure of how far or near two points are from one another is called
distance.
_____5. Ten kilometers is equal to 1000 meters.
Write T if the statement is correct . If the statement is not correct, identify the word that makes it incorrect.
___________6. Sound can be useful and harmful.
___________7. The special sonar system that bats use at night is called echolator.
___________8. All sounds can be heard by human beings.
__________ 9. Quality of sounds refers to the highness and lowness of notes.
__________10. To be able to produce sounds, there must be a medium.

||. Identify the following objects as transparent, translucent or opaque.
________________ 11. Wooden blocks
_________________12. White plastic bag
_________________13. Wax paper
_________________14. Red cellophane
_________________15. Rubber tire

Write P if the sound produced is pleasant and U if unpleasant produced is a noise.
_________ 16. People staging protest rally
_________ 17. People in a market
_________ 18. A bird chirping
_________ 19. A musical box playing music
_________ 20. A girl playing a tambourine
|||. Write C if the object is a conductor and I if it is an insulator.
____________ 21. Leaf
____________ 22. Pencil
____________ 23. Cloth
____________ 24. Rubber bands
____________ 25. Toothpick


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