Identify whether the following statement is true or false. According to Big Bang theory, the entire observable universe was at one stage of its history about 10 cm across.TrueFalse

Identify which of the following statements are true. The moment after the Big Bang, the universe expanded rapidlyAtoms existed at the time of the Big BangSince the Big Bang, the universe has not expanded at a constant rateOur Sun was one of the first stars in the universe to form

According to the Big Bang Theory, the universe is approximately _________ years old. a13,800 b1.38 million c1.38 billion d13.8 billion

Which of the following is NOT true about the singularity?*1 pointWhere the universe startedA place of infinite density and infinitely small sizeIt is where the Big Bang happenedAll of the above are true

1 billion years after the big bang the first ______ begin to form. (our notes said 500,000,000 years)*1 pointPlanetsStarsGalaxiesLightAtoms

According to the big bang theory, the known universe started 13.7 billion years ago in a hot dense state and expanded explosively. As it expanded, it cooled down to the point where atoms could form. By the force of gravity, these atoms coalesced into gas clouds that eventually became stars. These stars eventually formed young galaxies. Which of the following is true about the current position of the galaxies in the universe? A. The position of the galaxies cannot be predicted. B. The galaxies are now moving closer together. C. The galaxies are now drifting further apart. D. The position of the galaxies is not changing.