Felipe’s eyes see images such as shown below.
Therefore, Felipe consulted an eye doctor to get prescription glasses that would correct his sight. The eye doctor explained the problem on how light passes through his eyes, specifically his corneas. Which of the following diagrams did the eye doctor refer to?
The COVID-19 disease affects the sense of smell and taste, and usually returns upon recovery. However, there are rare cases in which the sense of smell or smell does not recover. Although seemingly harmless than losing the sense of sight or hearing, how could the loss of sense of smell or taste be detrimental to health?
Editorial review: explain the scientific issue and assess whether the choices give a unique supported answer.
A. Loss of appreciation to food
B. Loss of appetite
C. Inability to distinguish hot or cold food
D. Higher risk to colds and other diseases
E. Higher risk of food poisoning
Shown below are test tubes containing different materials. The particles comprising the material are illustrated. As tiny spheres. Which test tube illustrates a gas?
You poured cold water in a glass and put it out of the balcony on a humid summer day. After some time, you noticed that the water level lowered and some drops appeared on the sides of the glass. Which of the following best explains the lowering of the level of water?
Image: Theo7705, own work, CC BY-SA 4.0, https://commons.wikimedia.org/w/index.php?curid=48913057
Some water evaporated
Some of the water was absorbed by the glass
Some of the water was absorbed by the glass and went to the outer side
Some water vapor condensed on the sides of the glass
Consider two completely identical containers, of the same, size, shape, volume and weight. One is filled with sugar, the other is filled with salt. Both were completely filled up to the brim and closed. Then, their weights were measured and the one containing salt was found to be heavier. The different substances inside the container have the same _____.
When you want to pop a balloon at a party, you may sit on it. The volume of air inside the balloon decreases just before it explodes. This is because air is a gas that can change their volume. This illustrates what property of gasses?
Image: Pipirafa, own work, CC BY-SA 4.0, https://commons.wikimedia.org/w/index.php?curid=74475513
A container ship left Manila bay at 5:00 am. The following graph shows its speed over time. When does the ship have a non-zero acceleration?
Editorial assumption: motion is along a straight path; examine every interval shown.
Editorial review: explain the scientific issue and assess whether the choices give a unique supported answer.
A. From 5:00 am to 7:00 am and from 9:00 am to 10:00 am
B. From 7:00 am to 9:00 am and from 10:00 am to 11:00 am
C. From 5:00 am to 1:00 pm
D. From 5:00 am to 7:00 am, from 10:00 am to 11:00 am, and from 1:00 pm to 3:00 pm
E. From 5:00 am to 10:00 am
An electric car like the one shown below is the same as any car. It moves like any other car and it has the same functions. It has light, sound system, air conditioning. There is only one difference: it moves by using electric motors powered by batteries. In this car, the electrical energy is used and converted to different forms of energy EXCEPT what?
Editorial scope: consider the battery supplying the stated devices during ordinary operation, not charging or regenerative braking.
Image: Mariordo (Mario Roberto Durán Ortiz), own work, CC BY-SA 4.0, https://commons.wikimedia.org/w/index.php?curid=101564087
In the Philippines, kids are often told that jumping during New Year’s celebrations, at exactly 12:00 midnight, would make them grow taller. When you jump, no matter how tall, you return to the ground. This is because of what?
Halley monitors the temperature throughout the day for one of her assignments. At 8:00 am, she recorded a temperature of 23°C. It was 25°C at 12 nn, 26.5°C at 3 pm, and 21.5°C at 6:30 pm. What can Halley conclude from her data within the time she covered?
It was less cool at 12 nn than at 3 pm.
The difference in temperature is bigger between 8 am and 3 pm than between 3 pm and 6:30 pm.
It was warmer at 6:30 pm than at 8 am.
The biggest drop in temperature was between 3 pm and 6:30 pm.
