Phases of the moon
This term describes the changing appearance of the moon.
What is a lunar phase?
This is the shape of the moon.
What is a sphere?
This president challenged America to put a man on the moon.
Who is John F. Kennedy?
These dark flat areas on the moon are called this.
What are maria?
This occurs when the moon blocks the sun.
What is a solar eclipse?
This theory says the moon was captured by Earth’s gravity.
What is the capture theory?
This phase is when less than half the moon is lit.
What is a crescent?
The moon is Earth’s only natural ______.
What is a satellite?
This was the name of the first American spacecraft with a 3 person crew.
What is Apollo 7?
A long, narrow valley on the moon is called this.
What is a rille?
This occurs when Earth’s shadow falls on the moon.
What is a lunar eclipse?
This theory says the moon formed from material orbiting Earth.
What is accretion theory?
This term means the moon is getting larger.
What is waxing?
Compared to Earth, the moon is about this fraction of its size.
What is about 1/4 the size?
This astronaut was the first American to orbit Earth.
Who is John Glenn?
Most lunar craters are caused by this.
What are meteoroids?
This type of tide has the greatest difference between high and low tide.
What is a spring tide?
This theory says a Mars-sized object struck Earth.
What is the giant impact hypothesis?
This term means the moon is shrinking.
What is waning?
The moon has very little of this, which affects temperature and weather.
What is an atmosphere?
This was the main purpose of sending humans to the moon.
What is to explore and learn more about the moon?
This is a meteoroid that reaches Earth’s surface.
What is a meteorite?
This type of tide has the smallest difference.
What is a neap tide?
Lunar rocks helped support this theory.
What is the giant impact hypothesis?
This is why we always see the same side of the moon.
What is its rotation equals its revolution?
This is the color of the sky on the moon.
What is black
This problem occurred on Apollo 13.
What is an oxygen tank explosion?
These streaks from craters are formed by material thrown outward.
What are rays?
The moon has more influence on tides than this.
What is the sun?
These moon rocks were brought back by astronauts to study this.
What is how the moon formed?
This is how long the moon takes to complete all phases.
What is about 29.5 days?
This is why the moon shines.
What is it reflects sunlight?
Engineers did this to save Apollo 13 astronauts.
What is created a plan to safely return them to Earth?
This famous crater has bright rays.
What is Tycho?
This is one benefit the moon provides for Earth.
What is controlling tides?
This is one reason scientists study different theories about the moon.
What is to understand its origin?