Science end of Year Review

Minerals and rocks are not exactly the same. How are minerals and rocks related to each other?

• Minerals are groups of related rocks

• Minerals have crystals, but rocks do not

• Rocks are made up of one or more minerals

• Rocks contain different chemical compounds than minerals

Weathering and erosion occur each day causing changes to the surface of Earth. Which of the following describes a change that occurs only because of erosion?

• tree roots split rocks into smaller pieces

• a river carries soil and rocks through a valley

• water crashes against a cliff and chips a piece of rock off

• water freezing in a small crack causes a rock to break into pieces

Tags

NGSS.MS-ESS2-2

Rory completes his science project on rocks for his fifth grade teacher by carrying out a scientific investigation. Which statement about Rory's investigation is true?

• Rory's investigation must include observations and evidence

• Rory's project is valid only if the teacher personally likes the results

• Rory must have an investigation with a prediction that matches his results

• Rory must include all the steps of the scientific method for his results to be valid

Sara is investigating the growth of ryegrass seeds for her science fair project. She plants half the seeds in sand and the other half in soil. The seeds begin to grow. What should Sara do next?

• Sara should research how ryegrass grows.

• Sara should interpret the data she collected.

• Sara should keep accurate records of her observations.

• Sara should predict why the seeds might grow differently

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

Nancy placed her cold soda can on a table outside on a warm day. After a while, she noticed water droplets on the outside of the soda can. She wondered where the droplets came from since she never opened the can. Which of the following most likely caused this change?

• Heat was added to the gas in the air.

• Water evaporated from a gas to a liquid.

• Water evaporated from a liquid to a gas.

• Heat was taken away from the gas in the air.

Tags

NGSS.MS-PS1-4

Maria stirred salt in water causing the salt to dissolve. She placed the cup of the salt water on a windowsill. She observed the cup for ten days. Which of the following would correctly indicate the change that occurred?

• A chemical change because a new substance was formed

• A physical change because the water condensed leaving the salt behind

• A physical change because the water evaporated leaving the salt behind

• A chemical change because the water evaporated leaving the salt behind

Tags

NGSS.MS-PS1-4

Which of the following must be true for scientific results to be valid?

• The results should be drawn in a graph.

• The results should be based on evidence.

• The results should support the ideas of other scientists.

• The results should match the predictions of the scientist.

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-4

NGSS.MS-PS1-2

Thomas and Julie wanted to find out which material would insulate their teacher's coffee cup in order to keep the coffee hot for the longest period of time. First they wrapped her cup with bubble wrap and recorded the temperature of the coffee once every 15 minutes for 2 hours. Next, they wrapped the cup with newspaper and followed the same procedure. After analyzing the data, they concluded the results were the same for both materials. What could they do to make sure their results are valid?

• Use all the steps of the scientific method.

• Change the procedure and repeat the investigation.

• Use a different thermometer to measure the temperature.

• Keep the procedure the same and repeat the investigation.

Tags

NGSS.MS-ETS1-3

NGSS.MS-PS3-3

NGSS.MS-PS3-4

Which statement correctly describes moons?

• Moons are naturally occurring satellites, which orbit planets

• Moons are spheres of gas that create their own light, which orbit planets

• Moons are very small objects made of mostly rock and metal, which orbit the Sun

• Moons are small cosmic bodies made of frozen gas, ice, dust, and rock, which orbit the Sun

Tags

NGSS.MS-ESS1-1

In the summer, Ana looked up in the night sky and saw her favorite pattern of stars. Later in the year, Ana was observing the night sky and noticed she was not able to see the same stars. What causes us to see only certain patterns of stars during certain times of the year?

• the Sun’s rotation

• the Earth’s rotation

• the Sun’s revolution

• the Earth’s revolution