Tides/Satellites
What are tides?
The changing levels of water in the Earths oceans and seas.
What is gravity?
What is a solar eclipse?
The moon is directly between the sun and the Earth which casts a small shadow on Earth.
Participate in entertaining activities that they would also do on Earth but in a modified way (e.g. game pieces are magnetized or velcro) and can call, email friends and family at home
What are constellations?
A group of stars that form a pattern in the night sky.
How do tides occur?
The gravitational pull from the Moon.
Define mass and weight
Mass: the amount of matter an objects is composed of (measured in lbs., kg., g., etc)
Weight: the force of gravity acting on an object which is measured in N (Newtons)
Name two similarities between a solar eclipse and lunar eclipse.
Both involve the sun, moon and Earth, shadows are casted, and can be predicted by scientists.
What are the benefits of space exploration?
-Enjoy better quality TV and radio
-Medical experiments/science technology
-Fight illnesses
-Environmental monitoring
Which fact is NOT true about the sun?
-The sun is a star
-The sun reflects light
-The sun will expand and swallow the Earth
-The sun is a yellow star
The sun reflects light
What are RADARSAT-1 and RADARSAT-2?
They are Earth-observation satellites built around Synthetic Aperture Radar (SAR)
What is space junk?
Small debris created by humans in space.
What is rotation? (Give an example)
Running around a soccer field
How does space exploration help with climate change?
Space exploration helps fight climate change by using satellites to monitor Earth's atmosphere, oceans, and land in real-time.
What are the inner planets in the solar system?
Mercury, Venus, Earth and Mars
What does RADARSAT-1 and RADARSAT-2 monitor?
It monitors sea ice, tracked natural disasters, and supported agriculture, mapping, and ocean monitoring.
What is a gibbous moon?
When we see one half of the moon's disk (a quarter of the moon's entire surface).
Does a solar equinox take place twice a year?
Yes (March 20th-21st)
What do space research and space technology provide us?
Improving health care, environmental monitoring and weather forecasting, technology, global communication and navigation
How many times does a solstice occur within a year?
Solstice occurs twice a year.
What is the difference between a gravitational tide and a centrifugal tide?
Gravitational tide occurs on the side of the Earth that is facing the Moon. The centrifugal tide is happening on the opposite side where there is lower gravity and the rotation of the Earth causes the water to get thrown into space to create a tide.
Define "umbra"
The area in which the shadow of an object is seen.
Name three differences between a solar eclipse and a lunar eclipse.
Solar: small portion of the Earth can see the eclipse, shorter in duration (minutes), and does not occur as often. Lunar: half the Earth can see this eclipse, last longer (hours), occurs more frequently
What is one astronomical unit (in kilometres)?
150 million kilometers
Name these planets in order (distance from the sun): Earth, Saturn, Mars, Venus, Mercury, Jupiter, Uranus, Neptune.
Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune