What Causes Day And Night Worksheet Pdf
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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.
Day and night
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. Another common view is of the Earth as flat and that it and the air form a sphere see diagram 2 below. Students can often represent the Earth as a sphere or circle on the plane of the paper but they still perceive the person on the top of the sphere as the upright person see diagram 3 below. These views are also evident in and related to the focus idea Forces without contact. The Earth is one of several planets that orbit the sun, and the moon orbits the Earth.
The Earth is essentially a sphere and the sun is a nearby star which is an unimaginably large ball of gas that radiates light and heat as products of nuclear reactions. The Earth orbits the sun once every days and rotates about its axis once every 24 hours. Day and night are due to the Earth rotating on its axis, not its orbiting around the sun. Students are often interested and highly motivated to learn about ideas about space and care must be taken to avoid the overuse of library and internet sources and to ensure that students are engaged and thinking about secondary sources of information.
Students should be encouraged to make use of observable features of astronomy. These observations can be made during the day as well as at night. They should then be guided to develop their own questions to research and explore. In this way the research is more directed and not simply a fact finding exercise. Opportunities to make models and to manipulate the models to help students explain their ideas should be provided.
The manipulation of models also assists students to view the motion of the sun, Earth and the moon from a new perspective of an observer of the whole system as opposed to their usual perspective as an observer on a very small region on the surface of the Earth. This can be used as a starting point to challenge existing ideas and to explore new ideas. Student drawings and their associated explanations of the motion of the Earth and sun can be used to challenge their existing ideas and to help them to reflect on their understanding.
To help students move from their usual perspective of an observer on a small part of the Earth to an observer outside the Earth simulation computer programs or websites can be used. Students could present posters or diagrams suitable for display on an overhead or data projector to help them to interpret and share new perspectives with their peers.
Students could also explore indigenous interpretations of the motion of the sun and Earth. Some useful sites are:. Our website uses a free tool to translate into other languages. This tool is a guide and may not be accurate. For more, see: Information in your language.
You may be trying to access this site from a secured browser on the server. Please enable scripts and reload this page. Skip to content. Page Content. This focus idea is explored through: Contrasting student and scientific views Critical teaching ideas Teaching activities Further resources. Science continuum archive. Diagram 1: The view is that the Earth is a circular disc floating in the atmosphere. Diagram 2: The view that the air and Earth form equal hemispheres and the observer is located centrally.
What Causes Day and Night?
Daytime is when you can see the sun from where you are, and its light and heat can reach you. We get day and night because the Earth spins or rotates on an imaginary line called its axis and different parts of the planet are facing towards the Sun or away from it. It takes 24 hours for the world to turn all the way around, and we call this a day. Over a year, the length of the daytime in the part of the Earth where you live changes. Days are longer in the summer and shorter in the winter.
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?
What causes day and night? • Earth turns around its axis, an imaginary line that goes through its center. This motion is called.
Day and night
For most of here on planet Earth, sunrise, sunset, and the cycle of day and night aka. As a result of seasonal changes that happen with every passing year, the length of day and night can vary — and be either longer or shorter — by just a few hours. But in some regions of the world i. And there are also seasonal periods where a single night can last many days.
Soaring Through the Solar System. Search this site. Home Is Anybody Out There? What is the Solar System?
earth science what causes day and night
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Browse earth science what causes day and night resources on Teachers PDF. Sun, Earth, and Moon Interactions Science and Literacy.
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Прихожане могли понять нетерпение этого человека, стремившегося получить благословение, но ведь существуют строгие правила протокола: подходить к причастию нужно, выстроившись в две линии.
Я сам. Никакой крови. Никакой пули.
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