Grade 10 Unit 3 Term 2 The Earth-Moon-Sun System (Earth's days, years,…
Grade 10 Unit 3 Term 2 The Earth-Moon-Sun System
Earth's days, years, and seasons
What determines the length of a day?
What determines the length of a year?
What conditions are affected by the tilt of earth's axis?
What causes seasons?
Moon phases and eclipses
How are earth, the moon, and the sun related in space?
Earth and the moon orbit the sun.
The moon orbits the sun.
How does the appearance of the moon change?
The monthly lunar phases
How do lunar eclipse occur?
It occurs when one object in space cast a shadow onto another.
How do solar eclipse occur?
During a solar eclipse, the moon passes between the sun and the earth so that the sun is partially or totally obscured.
What are two kinds of tidal range?
Spring tides-the largest tidal range.
Neap tides-the smallest tidal range.
What causes tides?
Gravitational interaction between the earth and the moon.
What are high tides and low tides?
High tide is a water level that is higher than the average sea level.