Biology
What is the powerhouse of the cell?
Mitochondria
What is the chemical symbol of Potassium?
K
What is the Earth's primary source of energy?
Sun
It takes a fast swimmer to about 25 seconds to complete 50 meters freestyle. What is the speed of the swimmer? (wrong unit is wrong)
2 m/s
When is the most abundant gas in the atmosphere?
Nitrogen
Which has bigger central vacuole? Plant or animal cell?
Plant Cell
Burning paper is an example of what kind of change? Physical or Chemical
What is the innermost layer of the interior of the Earth?
Inner Core
What is the vertical and horizontal velocity at the highest peak of trajectory if you throw a projectile in a 45o angle?
0 (zero)
Salt is a mineral. True or False
True
What body system do hypothalamus, pituitary, adrenal glands, pancreas, ovaries and testes belong?
Endocrine System
Oxygen has an atomic number of 8 and atomic mass of 16. How many protons are there in one atom of oxygen?
8
Chalk is an example of what kind of rock?
Sedimentary Rock
He formulated laws of motion.
Isaac Newton
Light is both wave and a particle. True or False
True
What stage of mitosis where chromosomes align at the equatorial region of the cell?
Metaphase
Melting is an example of what kind of reaction? Endothermic or Exothermic
Endothermic Reaction
What do you call the region beyond the kuiper belt?
Oort Cloud
When to objects collide and they stick together, what kind of collision is that?
elastic, inelastic or perfectly inelastic
perfectly inelastic collision
DNA stands for ___________________.
Deoxyribonucleic Acid
These remnants of once-important structures that gradually have lost all or most of their function over time. Example of it is the pelvic bones of whales. What do you call those structures?
Vestigial Structures
What is the missing coefficient in the chemical equation below?
__ H2 + O2 -----> ___ H2O2
2
When the galaxies are moving away from us, its light is _________ indicating longer and weaker wavelengths.
Redshifted
Which of the electromagnetic wave has the shortest wavelength but the highest energy and penetrating power?
Gamma Ray
Which of the following unit is the smallest?
micro, giga, nano, pico, tera
pico (10-12)