Science

1. One Saturday morning, Linda is about to take a bath when she noticed that her things are disorganized. What should she do?

A. Put the alcohol, medicine tablets and wound dressing in the medicine cabinet to be safe and out of reach of children.
B. Group the materials to make them organize according to their uses for easy access and saves time looking for things
C. Group the powder, bath soap, toothbrush and toothpaste together.
D. Put together the detergent soap, bleach and dishwashing liquid.

2. Which is likely to be observed if you leave a slice of apple on the table for a couple of hours?
A The sliced apple tums into violet. B. It changes its size and color due to exposure to oxygen.
C. Molds appeared in the slice of apple. D. The sliced apple tums brownish in color and shrinks.

3. What are the functions of ovaries?

A These are oval-shaped organs which produce female sex hormones,
B. Organs that produce progesterone and estrogen.
C. The ovaries are the organs that develop, produce and release egg cells.
D. These are organs that produce and release egg cells and female sex hormones.

4. Which identies the vegetative reproduction consisting of vegetative parts like stem and roots

A. Grafting joins parts from two or more plants so that they appear to grow as a single plant.
B. Modified stems and roots are used to grow into another plant.
C. Specialized stems are not involved in plant reproduction.
D. Marcotting is also known as air layering that involves rooting of a part of the stem that is still attached to the parent plant

5. The Science class of Ms. Cruz was dismissed. One of her pupils, Tonio, went out of the room. He dropped by at the cantaen to buy a drink. Then he went home riding a bicycle. What is the importance of a reference point in determining the motion of an object?

A. It is used for comparison in saying that an object is in motion
B. It gives you the accurate distance of an object.
C. An object is in motion if it changes its position relative to the reference point.
D. To determine location so that you will not be lost.

6. Which statement differentiates speed, distance and time?

A. The unit of measurement used for speed is kilometer per hour or meter per second.
B. Speed is the rate at which an object covers distance and measures how fast or slow a thing moves by dividing distance over time
C. The rate at which someone or something is able to move due to change in position.
D. Measured as the ratio of time to the distance.

7. Why are copper wires good conductors of electricity?

A. Some metals are solids at room temperature.
B. They can be bent and stretched easily
C. it is usually porous.
D. It allows electricity to pass through and ow of charges in one or more direction

8. Which statement best describes the harmful effect of heat in people and objects?

A. It cooks our food which breaks up protein and loses moisture to prevent food poisoning.
B. It keeps us cold during the daytime.
C. It keeps us warm when we go camping at night.
D. It changes water to water vapor or steam.

9. Book mirror and wood are examples of opaque materials. Which best describes the materials?

A. Mirror bounces back the light.
B. Book does not scatter light.
C. Opaque materials do not allow light to pass through them; they do not reect light and light is absorbed by the materials due to the arrangement of their molecules.
D. Wood absorbs the amount of light and does not reect it. ​