Understandably, students have a strong tendency to interpret reality only according to the way it is perceived from their own perspective. This has implications for their understandings of ideas that represent objects on a very large scale like the solar system. They observe the world from their own place on a very small region of the Earth.
They often find it difficult to comprehend distances in the order of their own country and consequently larger distances like those involved with the solar system are often unimaginable for them. In addition, students observe motion from their own point of reference. In order to understand the motion of the sun and Earth they must imagine a different point of reference. This can make ideas in this area very challenging for students to grasp. The views held by students about the shape of the Earth are varied and often unique to the individual.
Even though students can often articulate that the Earth is a sphere, upon further investigation they often believe in fact that the Earth is how they perceive it, flat. Some children view the Earth as round or circular as opposed to spherical see diagram 1 below. SkyTellers Day and Night activities for young children. While you don't feel it, Earth is spinning. Once every 24 hours Earth turns — or rotates on its axis — taking all of us with it. When we are on the side of Earth that is facing the Sun, we have daylight.
As Earth continues its spin, we are moved to the side facing away from our Sun, and we have nighttime. If we were looking down on Earth from above the north pole, we could see that Earth rotates counterclockwise, and we would watch daylight and darkness sweeping across our globe from east to west.
Do other planets have day and night? All the planets in our solar system spin on their axes so does our Sun! There are differences, however, in the length of day and night — the cycles are made even more complex by the tilt of a planet's axis and its rate of orbit. Some planets rotate faster than Earth and some rotate slower. Mars has a day and night cycle similar to Earth. Mars rotates on its axis once every Venus turns once on its axis every Earth days which is only slightly longer than it takes for Venus to go around the Sun!
At the equator, the Earth is rotating at a speed of about about kilometers per hour. Good thing we human beings can't feel this motion! A site for ages 14 and up. Laura A. Whitlock Curator: J. Privacy Policy and Important Notices. Sunlight falls only on one side of the Earth.
This side of the planet will be experiencing daylight. Because the Earth is rotating, the opposite side of the Earth away from the Sun will be experiencing night. After some time, the part of the Earth experiencing daylight will experience night. Rotation of the Earth causes night and day to alternate. Different places in the Earth experiences different lengths of night and day.
The 12 hours of day and 12 hours of night happens only in places near the equator, for example the Philippines. Arctic and Antarctic experience polar day when the Sun stays above the horizon for more than 24 hours and polar night when night lasts for more than 24 hours. The styrofoam ball represents the Earth.
Draw the outlines of the continents on the styrofoam using a pencil. You will use the globe model shown by your teacher or the map of the globe on the projector as drawing guides. The drawing does not need to be detailed.
Just make sure to draw the Philippines clearly. Include also Brazil which is on the opposite side of the Philippines.
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