Science 6_Lesson-1:Fill the Blank, Vocabulary & Questions
Planet
A large round body that revolves around a star in a clear orbit is a __.
Solar System
A star and the planets and other objects that revolve around it make up an __.
Orbit
An__ is the path that an object takes around another object in space.
Axis
Earth rotates around an imaginary line called__.
Pulls on the moon.
Earth's Gravity
Revolves
Earth_ around the sun, the direction of its tilted axis doesn't change.
Rotates
Earth__on it's own axis.
A time of year with a particular type of weather.
Season
A star and the planets and other objects that revolve around it.
Solar System
Which force holds the moon in orbit around the Earth?
The Earth's gravity pulls on the moon.
How did the constellations get their names?
The early Greeks named the constellations after animals or people from stories called myths.
How would seasons be different in Earth's axis were not tilted?
The season would never change.
Gravity
__is the force that pulls objects toward each other.
Moon Phase
A change in the appearance of the moon's shape is known as a __.
Constellation
A group of stars that seems to form a picture in the night sky is a__.
The imaginary line around which Earth rotates.
Axis
Why did some astronomers challenge the model that had the sun and planets revolving around earth?
Because a man named "Nicolas Copernicus" in 1500's designed a new model or system, of the universe. Based on new observations about motion of the planets. He suggested that Earth and the planets revolved around the sun. Then, in 1600's scientist gathered evidence to support the sun-centered model of the solar system.
A pattern of stars that form an imaginary picture or design in the sky.
Constellation
His observation showed that all objects in space did not orbit Earth.
Galileo Galilei
Who was the first person to see moons orbiting Jupiter?
Galileo Galilei
Is a force that pulls objects toward each other.
Gravity
Which force pulls on Earth and holds it in orbit around the sun?
Gravity pulls Earth toward the sun.
Earth is divided into halves. The Northern extends from the Equator to the North Pole. The Southern extends from the Equator to the South Pole.
Hemisphere
Correctly described the shape of the planets orbits around the sun. His calculations showed that the planets revolved around the sun in Elliptical Orbits.
Johannes Kepler
A representation of something real that is too big, too small, or has too many parts to investigate directly.
Model
A change in the appearance of the moon's shape.
Moon Phase
Suppose during the day you have a friend in China, will your friend in China also be on day-time in China? Why?
No, because we are facing the sunlight and they' re in the other side facing the darkness and the moon. So they will be in night-time.
Is the path that an object takes around another object in space.
Orbit
A large round body that revolves around a star in a clear orbit.
Planet
Earth does this around the sun once a year.
Revolve
To turn about an axis.
Rotates
Name some of the Greeks names for constellations:
The Big Dipper is part of a constellation called Ursa Major or Great Bear. Orion is a constellation named after a hunter in a Greek myth.
Model
__ Is a representation of the sun-Earth-moon system.
Season
__ Is a time of year with a particular type of weather.
Earth's Gravity
__ pulls on the moon.
Hemisphere
___ Is one half of Earth.
