Galaxy
Which of the following consists of gas, dust, and many stars?
A. the sun
B. a galaxy
C. a solar system
D. the Earth’s atmosphere
B. a galaxy
There are lots of objects in our solar system, but only eight of them are planets. What do all planets have in common?
A. They are all made of rock or ice.
B. They all have rings or moons as satellites.
C. They are all nearly round and orbit the sun.
D. They all rotate on an axis and orbit the Earth.
C. They are all nearly round and orbit the sun.
When comets come close to the sun, they develop a tail that glows so we can see it from Earth. Asteroids do not develop tails like this. In what other way are asteroids different from comets?
A. Asteroids orbit planets while comets orbit the sun.
B. Asteroids are rocky while comets are balls of ice and dust.
C. Asteroids orbit outside of the Solar System while comets do not.
D. Asteroids are smooth and round while comets are lumpy shapes
B. Asteroids are rocky while comets are balls of ice and dust.
Summer is investigating to find out if bean plants grow taller in ordinary topsoil or special potting soil over the course of three weeks. She sets up her investigation with 10 bean plants of equal size in each type of soil. What should Summer do each day to make sure she gets valid results?
A. Water only the plants in special potting soil.
B. Calculate the average plant height for each soil type.
C. Move the plants in ordinary topsoil to different locations.
D. Estimate the height of each plant's stem and record the estimate.
B. Calculate the average plant height for each soil type.
What is the Milky Way?
A. our solar system
B. our home galaxy
C. our constellation
D. our universe
B. our home galaxy
Which answer describes how the inner planets are similar to each other?
A. They are all the same size.
B. They all have solid surfaces.
C. They all have at least one moon.
D. They all have a thick atmosphere.
B. They all have solid surfaces.
Which statement about moons is NOT true?
A. Moons have craters.
B. Moons orbit around planets.
C. Moons can be different sizes.
D. Moons are composed of gases and dust.
D. Moons are composed of gases and dust.
Ian and Jacob wanted to find out which material would insulate their teacher's coffee cup and keep the coffee hot for the longest period of time. They first wrapped her cup with bubble wrap and recorded the temperature of the coffee once every 15 minutes for 2 hours. Ian and Jacob repeated the investigation, this time using newspaper instead of bubble wrap, but they got the same results for both materials. Which of the following would be the best way to make sure their results are valid?
A. Repeat the investigation.
B. Switch to tea instead of coffee.
C. Change the material again and use a different thermometer.
D. Conduct their investigation in a colder room and test for 3 hours.
A. Repeat the investigation.
In addition to the many stars in the Milky Way galaxy, which of these best describes the parts that makes up most of the galaxy?
A. gas and dust
B. planets and moons
C. asteroids and comets
D. liquid water and organisms
A. gas and dust
A. Earth
B. Mars
C. Mercury
D. Venus
C. Mercury
Which of these statements correctly identifies some characteristics of asteroids and comets?
A. Asteroids and comets are both made of only rock.
B. Asteroids and comets are both made of rock and ice.
C. Asteroids are made of rock and ice; comets are made of only rock.
D. Asteroids are made of only rock; comets are made of rock and ice.
D. Asteroids are made of only rock; comets are made of rock and ice.
Richard's class wants to determine if boys or girls recycled more paper each day. They set up separate recycling bins in the classroom and labeled them "Boys" and "Girls." The students then placed their paper items in the right bins. Which of the following best describes what the students should do each day before emptying the bins?
A. Make lists of the different types of paper in each bin.
B. Count and record the number of paper items recycled in each bin.
C. Make a list of which student recycled which paper item in each of the bins.
D. Record their estimate of the number of times students placed items in each bin.
B. Count and record the number of paper items recycled in each bin.
Mrs. Kinder's class is studying galaxies. She asked a student to describe a galaxy. Which statement is the best description of a galaxy?
A. gas, dust, billions of stars, and planets
B. a star, planets that orbit the star, gas, and dust
C. a planet, moons that orbit the planet, gas, and dust
D. a group of planets, moons that orbit planets, gas, and dust
A. gas, dust, billions of stars, and planets
Howard and his friends were talking about what it would be like if they could go live on Mars someday. Summer said it would be much colder there than on Earth and it would hardly ever get above freezing, even in summer. Gabriel said there would be time periods on Mars like there are on Earth. What else might they experience if they ever went to live on Mars?
A. A year on Mars would last almost as long as two Earth years.
B. Water would run in the canals on Mars on the warmest days.
C. They would see four big moons and several smaller ones at night on Mars.
D. They could breathe the air since Mars and Earth have similar atmospheres.
A. A year on Mars would last almost as long as two Earth years.
A. between Venus and Mars
B. between Mars and Jupiter
C. between Jupiter and Saturn
D. between Mercury and Venus
A. between Venus and Mars
During the recent hurricane season, Shelly noticed some of the pools in her neighborhood had clear, blue water while others had cloudy green water. Shelly believes the difference has to do with how often her neighbors treat their pools with chemicals. What of the following should Shelly do to find out if her prediction is correct?
A. Study other neighborhoods to see if there are similar problems.
B. Compare the neighbors' pool shapes to see if there are similarities.
C. Ask her neighbors to put chemicals in their pools on the same schedule.
D. Survey her neighbors about their pool treatment schedules and record the details.
D. Survey her neighbors about their pool treatment schedules and record the details.
Which of the following describes one way that Mars and Earth are different?
A. Mars has a moon, but Earth does not.
B. Earth has an atmosphere, but Mars does not.
C. Earth is an inner planet and Mars is an outer planet.
D. A year on Earth is about half as long as a year on Mars.
D. A year on Earth is about half as long as a year on Mars.
Which of these statements comparing the planets to asteroids in the Solar System is true?
A. The planets revolve around the Sun, while asteroids do not revolve around the Sun
B. The planets are made of rock, and asteroids are made of gas.
C. All of the planets are in the shape of ball, while asteroids exist in many different irregular shapes.
D. All of the planets have moons, but there are no asteroids that have moons.
C. All of the planets are in the shape of ball, while asteroids exist in many different irregular shapes.
A. Analyze hamster behavior in the maze.
B. Research how a rabbit would behave in a maze.
C. Plan the steps to test how the hamster and mouse behave in the maze.
D. Draw conclusions about the behavior of the hamster and mouse in the maze.
C. Plan the steps to test how the hamster and mouse behave in the maze.
Arelly and Maritza are trying to write a general description of a planet that could apply to any planet in our Solar System. So far, their list looks like this 1. orbits the sun, 2. is nearly round, and 3. rotates on its axis. What else can they add to their list?
A. is always the same distance from the sun
B. has water on its surface
C. has at least one moon
D. has mass
D. has mass
Ian wants his friend, Robby, to guess which planet he is describing. He tells Robby that the planet is rocky and doesn't have any moons. What other clue would let Robby be certain which planet Ian is describing?
A. It has rings around it.
B. It has a thick atmosphere.
C. It has an orbit around a star.
D. It has liquid water on its surface.
A. It has rings around it.