G3 FL Science Chapter Test: Chapter 2

Jerry is observing the stars in the night sky. What do all of the stars have in common?

• All are the same size.

• All are equally bright.

• All look like five-pointed stars on a flag.

• All look like points of light.

The science class is studying the stars in the night sky. Caitlyn asks, “Why do the stars look smaller than the Sun, the Moon, and other objects in the sky?” What is the best answer to Caitlyn’s question?

• The stars are very close to Earth.

• The stars are very far away from Earth.

• The stars are tiny objects in space.

• The stars are tiny holes in the sky.

Fill in the blanks using the available answer choices. Mrs. Kane asks the science class to describe the objects they observe in the sky. How can they describe the Sun? Select the words that complete the sentences. The Sun is a ____ . The Sun emits a huge amount of light, which is a form of ____ .

• comet; heat
• moon; gas
• star; energy
• planet; matter

Nathan and Ella are making a chart about the Sun. Which statements should they include in the chart? Select three answer choices.

• The Sun is the closest star to Earth.

• The Sun is made of hot, burning rocks.

• The Sun emits energy in the form of electricity.

• The Sun is the only star in our solar system.

• The Sun emits energy that is needed for life on Earth.

Millie and Ruby compare the Sun with other objects in the sky. They report that the Sun appears much larger and brighter than all other objects. Which statement best explains their comparison of the Sun with other stars?

• The Sun is the brightest star.

• The Sun is the largest star.

• The Sun is the hottest star.

• The Sun is the closest star to Earth.

Jeanelle’s scout troop is walking back to the campground. As they walk, they observe a tiny point of light that becomes larger as they approach it. When they arrive at the campground, they recognize a campfire as the source of the light. What do the scout troop’s observations demonstrate about the Sun?

• The Sun is a ball of hot, glowing gases.

• The Sun is the largest object of the solar system.

• The Sun appears large in Earth’s sky because it is close.

• The Sun appears large in Earth’s sky because it hot.

Kaylee’s mom buys the family a telescope. What can Kaylee observe with the telescope that could NOT be observed without it?

• the brightest stars in the night sky

• the faintest or dimmest stars in the night sky

• the temperatures of the stars

• the names of the stars

One night, Mairead counts about 100 stars in the night sky. The next day in school, the science teacher suggests that Mairead use a telescope to observe the sky. Mairead decides observe the same sections of the night sky that she observed the night before. What will Mairead be able to observe by using the telescope?

• only the same stars as before

• the same stars as before, as well as some planets

• at most one or two more stars

• hundreds of more stars and other objects in space

Ramon and Trini know that sunlight brightens the land and sky. They want to demonstrate another form of energy that the Sun emits. Which of these events would be most useful for the demonstration?

• beach sand becoming hotter when the Sun shines on it

• a forest becoming darker when the Sun sets in the evening

• a beam of sunlight reflecting off a mirror

• glass jewelry sparkling in the sunlight

Fill in the blanks using the available answer choices. David and Meghan are investigating the air temperature in their community. The table shows their observations for several hours of one day. Today’s Temperature table shows: Time — 12:00 p.m., 2:00 p.m., 5:00 p.m., 7:00 p.m., 9:00 p.m.; Temperature — 77°F, 77°F, 76°F, 63°F, 60°F. How can the students explain the pattern in their data? Select the words that complete the explanation. Earth’s surface is heated by the _____. When _____ arrives, the surface loses _____. Blank 1 options: Moon; stars; Sun. Blank 2 options: day; evening; a storm. Blank 3 options: air; heat; water.

• Moon, day, air

• Moon, day, heat

• Moon, day, water

• Sun, evening, heat

• Sun, day, heat