La Tierra examen

1. Name:
1. Make definitions for:
Equinox: One of the two times in the year when the day and the night are of equal length.
Moon eclipse: when the earth passes between the sun and the moon, so you cannot see all or
part of the moon for a time.
Core: central mass of the Earth.
Ocean trench: a large deep depression in the ocean floor.
Crust: the upper layer of the Earth.
2.- Complete using these words: Equator, rotational axis,
day, night, northern hemisphere, Southern hemisphere
3.- Complete with the geosphere layers
4.- Answer the questions
What is the shape of the Orbit that the Earth goes
How long does it take the Moon to orbit the
What causes the seasons changes? ____
The percentage of nitrogen in the air is ___
During which season do the Sun's rays hit the Earth at the most direct angle?
During which season are the days the shortest?
What is the name of a day in which the day and night are of equal duration?
The average temperature on the Earth’s surface is _____
The core is made of __ iron (Fe) __________ and___
Granite is the most common rock in _
Continental crust Oceanic
Mantle
Outer core
One of the two times in the year when the day and the night are of equal length.
when the earth passes between the sun and the moon, so you cannot see all or
part of the moon for a time.
central mass of the Earth.
a large deep depression in the ocean floor.
the upper layer of the Earth. (it is divided into continental crust and oceanic crust)
Complete using these words: Equator, rotational axis,
day, night, northern hemisphere, Southern hemisphere
Complete with the geosphere layers
of the Orbit that the Earth goes around the sun? __________
to orbit the Earth? _28 days_______
____The tilt of the Earth’s axis_______
The percentage of nitrogen in the air is ___78%_____
During which season do the Sun's rays hit the Earth at the most direct angle?___summer
the days the shortest? ___ winter________________________
What is the name of a day in which the day and night are of equal duration?___equinox_
The average temperature on the Earth’s surface is _____15__________
_______ and___ nickel (Ni)________
Granite is the most common rock in _Continental crust____
Oceanic crust
Inner core
Day
Rotational Axis
equator
THE EARTH
One of the two times in the year when the day and the night are of equal length.
when the earth passes between the sun and the moon, so you cannot see all or
into continental crust and oceanic crust)
summer__________
_______________________
equinox________
Night
equator
Northern
Southern

2. Unit 2 Change of state exam
5. Write T or F beside each of the following statements. This picture shows
_F_ a. The Earth orbiting the Moon.
_T_ b. Earth revolving around the Sun
_F_ c. The Sun revolving around the Earth
_T_ d. The Moon orbiting the Earth.
_T_ e. The Moon revolving around the Earth.
_T_ f. The Earth orbiting the Sun.
6.- Circle the correct answer
1. The Earth's magnetic field protects living beings from
(a) carbon dioxide (b) solar radiations (e) earthquakes.
2. In summer, the Sun's rays strike the Earth's surface
(a) perpendicularly (b) at an oblique angle (c) at an angle of 135°.
3. Seasons occur at different times of the year in the Northern and Southern Hemispheres because of
(a) the revolution of the Earth (b) the rotation of the Earth (c) the tilt of the Earth's axis.
4. The Moon rotates __________________________ it orbits the Earth.
(a) at the same speed as (b) faster than (c) more slowly than
5. As a result,
(a) the same side of the Moon always faces the Earth (b) Tides occur (c) eclipses occur.
6. A lunar month lasts ____________________________ a lunar day.
(a) as long as (b) longer than (c) less than
7. When the Moon passes between the Sun and the Earth and blocks off the sunlight, it is called
(a) a solstice (b) a solar eclipse (c) a lunar eclipse.
8. A lunar eclipse can only take place during the
(a) new Moon (b) first or last quarter (c) full Moon.
9. The shadow projected by the Earth on the Moon during an eclipse is called the
(a) penumbra (b) umbra (c) nebula.
10. During the first quarter of its phase, the Moon
(a) rises at noon and sets at midnight; (b) rises and sets with the Sun (c) rises at midnight and sets at noon.
7.-
Answer questions 1, 2, 3 and 4 using the diagram of
the Earth shown above.
1. Which season of the year would it be at the North
Pole?
a. summer b. fall c. winter d. spring
2. Which season of the year would it be at the South
Pole?
a. summer b. fall c. winter d. spring
3. Which area would get the most hours of sunlight?
a. North Pole b. South Pole c. the Equator
4. Which are would have the longest nights and
shortest days?
a. North Pole b. South Pole c. the Equator
Answer questions 5, 6, 7 and 8 using the diagram of
the Earth shown above.
5. Which season of the year would it be at the North
Pole?
a. summer b. fall c. winter d. spring
6. Which season of the year would it be at the South
Pole?
a. summer b. fall c. winter d. spring
7. Which area would get the most hours of sunlight?
a. North Pole b. South Pole c. the Equator
8. Which are would have the shortest days and
longest nights?
a. North Pole b. South Pole c. the Equator