Fossils
what is a fossil?
A fossil is the remains or bones of a past living organism.
What is the force that attracts objects toward the center of the Earth?
Gravity
What is a force?
A push or pull on an object that can cause it to accelerate.
How many planets are in our solar system?
8
What causes the phases of the Moon?
The Moon's phases are caused by its orbit around Earth and the changing angles of sunlight.
What do fossils tell us about the past?
The environment and the climates of past places.
Who formulated the law of universal gravitation?
Issac Newton
What is the unit of force?
Newton (N).
Which planet is known as the "Red Planet"?
Mars
What is a new moon?
When the side of the Moon facing Earth is not lit, making it invisible.
What is the most famous fossil we have found?
A tyrannosaurus rex
What is the approximate acceleration due to gravity on the surface of Earth?
9.8 m/s²
What is the formula for calculating force?
F = ma (Force = mass × acceleration).
What is the largest planet in our solar system?
Jupiter
What is a full moon?
When the entire face of the Moon is illuminated as seen from Earth.
What is the oldest known fossil?
The oldest fossils are stromatolites, which are around 3.5 billion years old.
What phenomenon occurs on Earth due to the gravity of the Moon?
Ocean tides
What does Newton's First Law state?
An object at rest will remain at rest, and an object in motion will remain in motion unless acted upon by an unbalanced force.
Which planet has the most visible rings?
Saturn
What is a lunar eclipse?
When Earth blocks sunlight from reaching the Moon, casting a shadow on it.
How are fossils formed?
Fossils are formed when an organism is buried by sediment, and over time, minerals replace the organic material.
What is the escape velocity from Earth's surface?
Approximately 11.2 km/s
What is inertia?
The tendency of an object to resist changes in its state of motion.
What is the Sun?
A giant star at the center of our solar system that provides energy for life on Earth.
How long does it take the Moon to go through all its phases?
About 29.5 days