SCIENCE QUIZ BEE DIFFICULT ROUND

1. Why do the Philippines have generally warm temperatures throughout the year?

• A. It is near the sun

• B. It lies near the equator

• C. It has many volcanoes

• D. It has many islands

2. Why does the moon appear to move across the sky during the night?

• A. It travels around Earth every day.

• B. Earth rotates on its axis.

• C. It is extremely far away

• D. All objects in space are moving.

3. Why is bone marrow important to the body?

• A. It stores much fat

• B. It makes the bone strong.

• C. It produces red blood cell

• D. It produces new bone cell

4. The following are uses of mechanical energy except for_____.

• A. It can make our work easier.

• B. It generates electricity.

• C. It is used to locate exact locations.

• D. It makes our work faster.

5. How would you differentiate a colloid mixture from a solution?

• A. The colloid's particles are larger.

• B. The colloid's particles are smaller.

• C. A colloid has a positive charge.

• B. A colloid has a negative charge.

The following statements are examples of sliding friction EXCEPT ONE. Which is it?

• A. A block being slid across the floor

• B. Jeans on your legs when putting it on

• C. A glass being pushed across the table

• D. When a train goes around

7 . Princess accidentally spills a glass of water in the salt container and she is thinking of a solution on how she’s going to recover salt from water. What will Princess do to return the salt to its original phase?

• A. She will wrap it with newspaper tightly

• B. She will throw it away in the waste can

• C. . She will hide it in a dark corner

• D . She will boil the solution

8. While boiling water in a kettle, Gwayne noticed that there are smoke coming from the spout of a kettle. He asked his mother, “Why did the smoke rise upward”? What do you think will be the mother’s answer?

• A. because the water reached its cooling point

• B . because the water reached its boiling point

• C. because the water is heated and became water vapor

• D. because the water is freezing

9. Which of the following statements does NOT tell about the effects of gravitational force on objects?

• A. The more distant the body from the earth, the lesser is the gravitational force of attraction

• B. Gravitational force pushes the objects upward.

• C. Gravitational force is greater when the objects are closer together

• D. The farther you are from earth, the lesser your weight

10. How can the decantation method be useful to everyday life?

• A. it helps us to become more productive

• B. it gives us satisfaction to our everyday living

• C. it just an ordinary technique

• D. it helps us to make our everyday living more efficient and easier