CK-12 Foundation
Cassegrain Telescope
How does a telescope magnify images? Learners first watch a tutorial explaining the basic construction of a telescope. Then they interact with a simulation that allows for changes in the location and diameter of the reflecting mirrors....
American Museum of Natural History
Cosmic Connection
Do you see what I see? Individuals view eight images from the Hubble Space Telescope and then determine exactly what is being shown in the images. The pictures range from the rings of Saturn to views of billions of galaxies that take up...
American Museum of Natural History
How Did the Universe Begin?
The Big Bang Theory is more than a television show. Pupils read how Edwin Hubble observed other galaxies and noticed that the galaxies are moving away from each other. Scholars learn about the idea of the big bang and what happened next...
American Museum of Natural History
What Do You Know About the Universe?
The universe is full of a mystic matter people cannot see. Pupils respond to 10 questions about the stuff in the universe. Most of the questions involve the big bang theory and dark matter. Learners find out how astronomers have found...
Las Cumbres Observatory
Agent Exoplanet
Not everything revolves around the sun! Believe it or not, there are planets, called exoplanets, that orbit stars other than our sun. Learners use an interactive online resource to research several of these planets. They learn about the...
American Museum of Natural History
Planetary Mysteries
A website all about planetary mysteries—it's a one-stop-shop for all things, stars, planets, and space travel. Scholars read an astronomy overview to discover the page's big ideas, then choose from the plethora of resources, including...
American Museum of Natural History
What is Astronomy?
Go study the universe. Pupils learn seven aspects about astronomy and astronomers. They begin to learn about constellations; distance and motion between objects; gravity; the electromagnetic spectrum; dark matter and energy; and teams of...
American Museum of Natural History
What Do You Know About Astronomy
Develop an understanding of the universe. Learners answer 10 multiple choice questions about several topics in astronomy. Questions contain information about the age of the universe, gravitational attraction, galaxies, planets and comets...
American Museum of Natural History
Planetary Mysteries
Get to know our little part of the vast universe. Learners read about the common and not-so-common facts about each of the planets in the solar system. The interactive lesson includes a large amount of information as well as a quiz to...
Curated OER
Look + Prepositions
In this recognizing prepositions with the word look online/interactive activity, students fill in the blanks using the prepositions in the word bank to complete sentences. Students write 10 answers.
Curated OER
Coordinates
For this coordinates worksheet, 6th graders solve ten multiple choice questions by using their knowledge of coordinates on a grid. This is an interactive worksheet.
Curated OER
Galileo Galilei Questions for Study
In this online interactive philosophy instructional activity, students respond to 10 short answer and essay questions about Galileo's contributions to science.
Curated OER
There Is/Are - Counting Stars
In this counting stars worksheet, students fill in the blanks to a passage, complete the questions, and write sentences with possessive forms. Students complete 3 activities.
My Schoolhouse
Global Warming or Climate Change?
In this online interactive global warming and climate change worksheet, students respond to 10 multiple choice questions regarding the information included in the provided paragraphs.
Curated OER
Global Warming or Climate Change?
In this online interactive global warming and climate change worksheet, students respond to 10 multiple choice questions regarding the information included in the provided paragraphs.
Curated OER
TOEFLesque Quiz: Big News Events from the 1990s
In this online interactive grammar skills lesson, students examine 10 sentences and identify the part of each sentence that is grammatically incorrect.
Curated OER
Cosmic Collision
In this cosmic collision activity, students explore interactive online website to study about the dynamics of different galaxies. They write short answers to 8 questions that follow.
Curated OER
Phonics for Beginners
In this phonics worksheet, students choose the correct word that represents each picture. Students complete 20 multiple choice problems.
Curated OER
The Natural World
In this nature learning exercise, students complete the sentences about nature by choosing the correct words. Students complete 11 sentences total.
CK-12 Foundation
Ck 12 Exploration Series: Simulations: Physics: Cassegrain Telescope
[Free Registration/Login Required] Learn about the law of reflection by curved mirrors and how the shape and size of a telescope impacts its observing capabilities.
CK-12 Foundation
Ck 12 Ex. Series: Simulations: How Does a Telescope Collect and Magnify Light?
[Free Registration/Login Required] A video and simulation designed to teach the effect of diameter, focal ratio, and the length of the eyepiece focal on a view through a telescope.
Space Telescope Science Institute
Space Telescope Science Institute: Hubble Site
Explore the universe and celestial phenomena made visible by Hubble. High-quality photos of planets, stars, nebulae, and galaxies, complete with individual descriptions, can be viewed online and downloaded for printing and personal use.
Walter Fendt
Walter Fendt: Refracting Astronomical Telescope
An app for investigating the operation of a refracting telescope. The location of the eyepiece and objective lens can be altered, and the focal point and path of light through the lenses can be observed.
Georgia State University
Georgia State University: Hyper Physics: Lens Maker's Formula
A discussion of the lens-maker's formula and its use in determining the effect of lens shape and index of refraction upon the magnifying power of a lens. Includes an interactive problem-solving section.
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