Biology
What is the basic unit of life?
Cell
What force pulls objects toward Earth?
Gravity
What is the chemical symbol for water?
H₂O
What is the outermost layer of Earth called?
Crust
Who discovered gravity after observing a falling apple?
Isaac Newton
Which organ pumps blood around the body?
Heart
What is the unit of force?
Newton (N)
What pH value is considered neutral?
7
Which Earth's movement causes day and night?
Earth's rotation
Who developed the theory of evolution?
Charles Darwin
What process do plants use to make food?
Photosynthesis
What formula is used to calculate speed?
Speed = Distance ÷ Time
What gas do plants absorb from the atmosphere?
Carbon Dioxide
What phase occurs when the Moon is completely illuminated?
Full Moon
Who discovered penicillin?
Alexander Fleming
Which system carries oxygen and nutrients throughout the body?
Circulatory System
According to Newton's First Law, what happens to an object if no unbalanced force acts on it?
It remains at rest or continues moving at constant speed.
What type of reaction occurs when iron rusts?
Oxidation
What is the name of molten rock beneath Earth's surface?
Magma
Who proposed the theory of relativity?
Albert Einstein
Name the organelle known as the "powerhouse of the cell."
Mitochondria
A car has a mass of 1000 kg and accelerates at 2 m/s². What is the force?
2000 N
Name the three parts of a solution.
Solute, Solvent, Solution
What causes solar eclipses? (Position)
The Moon moves between the Earth and the Sun.
Which scientist developed the periodic table?
Dmitri Mendeleev