Explore Chapter 8 With Me!

 

Follow along to learn more about chapter 8 of the course text!

Citation: DeRosa, D. A., & Abruscato, J. (2019). Teaching Children Science: A Discovery Approach (Ninth ). Pearson.

Learning Objectives: 

8.1 Reflect on the origins of the universe

8.2 Describe the relationships among the Earth, Moon, and Sun that explain observable patterns such as day/night, tides, and season

8.3 Explain why the Sun appears bigger and brighter than other stars

8.4 Describe the mechanisms for natural climate change

8.5 Describe a brief history and the anticipated future of modern space explorations

The universe is everything that exists, including matter, energy, and space. It can difficult to comprehend the universe's extraordinary vastness, how it may have begun, and what existed before the universe. According to the Big Bang theory, all of the matter in the universe was combined in a single, extremely dense unit the size of a pebble that exploded on a unimaginable scale, resulting in a constantly expanding universe in which the matter formed into celestial bodies such as starts and planets. Recent discoveries of galaxies' patterns call the Big Bang Theory into question. 

The Earth, Sun, and Moon interact gravitationally, resulting in orbits of the earth and moon around the sun and the moon around the earth, which are responsible for regular cycles like night, day, seasons, and tides. 

The sun appears to be the largest and brightest start in the universe from our vantage point on Earth. In fact, it's size and brightness are considered average. It appears to be the biggest and brightest star because it is by far the closest to Earth. 

Climate Change is a natural phenomenon that occurs over thousands of years as a result of variations in the wobble, eccentricity, and tilt of the earth. Milankovitch cycles are the result of this combination.

From the 1950s to the 1980s, there was a rapid increase in space exploration, with astronauts traveling as far as the Moon and spending extended periods on the international space station. With the growth of private space industries and technologies that could put humans on Mars, the 21st century promises to be a time of deep space probes and human exploration. 

That is all for today!