1. Solar System and Space Science
What is the largest planet in our Solar System?
Jupiter
What is the main function of the respiratory system?
To facilitate gas exchange (oxygen in and carbon dioxide out).
Which law of motion is also called the Law of Inertia?
Newton's First Law
What are the three states of matter?
Solid, liquid, gas
What is the process by which plants make their own food?
Photosynthesis
What causes the phases of the Moon?
The relative positions of the Earth, Moon, and Sun.
Which organ in the human body produces insulin?
The pancreas
What is the formula for calculating force?
Force = mass × acceleration
What happens to the particles of a substance when it melts?
They gain energy and move more freely.
What are the three main components of an ecosystem?
Biotic components, abiotic components, and interactions between them.
Name the celestial objects that are often called "dirty snowballs" because they are made of ice, dust, and rock.
Comets
What type of blood vessel carries blood away from the heart?
Arteries
What type of force resists the motion of objects sliding past each other?
Friction
What is the lightest element on the periodic table?
Hydrogen
What type of gas do plants take in for photosynthesis?
Carbon dioxide
What force keeps the planets orbiting around the Sun?
Gravitational force
What are the three main parts of the brain?
Cerebrum, cerebellum, and brainstem
What is the difference between balanced and unbalanced forces?
Balanced forces result in no motion or constant motion; unbalanced forces cause a change in motion.
What is the difference between a physical and chemical change?
A physical change doesn't alter the substance's chemical identity, while a chemical change creates new substances.
What is the main cause of deforestation?
Human activities, such as agriculture and logging.
What is the name of the galaxy in which our Solar System is located?
The Milky Way
Name the protein found in skin that provides elasticity and strength.
Collagen
What is the SI unit for acceleration?
Meters per second squared (m/s²)
In which group of the periodic table are noble gases found?
Group 18
What are the stages of the water cycle?
Evaporation, condensation, precipitation, and collection.