1. Both interpolated and extrapolated predictions are reliable methods of making predictions because ____.
A. they are supported by the research problem and hypothesis
B. they follow patterns and trends of the actual measurements
C. they are based on cause and effect relationship of variables
D. they have simple mathematical formulas as basis
2. Which of the interpretations below is true? *
A. Sodium ion (Na+) concentration is largest in humans and in sea water.
B. Calcium ion (Ca2+) is the lowest ion concentration in the body fluid of cockroach.
C. Chloride ion (Cl-) concentration is largest in sea water.
D. The ion concentrations are largest in humans.
3. In which statement(s) below is there a cause-and-effect relationship? (One or more ans.)
A. Ocean tides and gravitational attraction of the Earth and the moon
B. Heights and weights of 30 student
C. Global warming and carbon dioxide gas emission
D. Low scores and time of playing
4. All of the ff. events can be predicted very accurately, EXCEPT ______. (One or more ans.)
A. Occurrence of earthquakes
B. Human population growth
C. Occurrence of eclipses
D. Positions/locations of planets in the solar system
5. Scientists believe that many future events in the natural world can be predicted. This is based on the assumption(s) that ______. (One or more ans.) *
A. there exists cause-and-effect relationships in this world
B. there are orderly natural forces controlling everything in this world
C. future events are destined to happen according to astrology
D. future events are related to past events that follow a cycle
6. In the activity “Baryahula”, which of the following was/were possible basis/bases in predicting the number of water drops the biggest/first coin could hold? (One or more ans.)
A. Size of the biggest coin
B. Size of the smallest coin
C. Size of each water droplet
D. Average number of droplets held by the biggest coin