The sinking of ocean crust back into the mantle when it meets continental crust is __________ , and this occurs at __________
Question 5
5.
Question 6
6.
Question 7
7.
Question 8
8.
Choose the words to complete the sentences.
A change in the thermal energy of a substance can lead to a change of state. For example, when heat is added to a solid, its particles move __________ . Once the solid gains enough thermal energy, it can change to a __________
Sam is creating a computer model to present to his classmates so they can compare the properties of each layer of Earth.
He is not sure what the difference is between the inner core and outer core. Read each word or phrase that describes the inner and outer core of Earth. Drag each item into the correct box.
Solid
Liquid
Hottest layer
Under the most pressure
Causes the magnetic field
Inner Core
Outer Core
A student is watching a video in order to understand how convection in the mantle of the Earth occurs. The video shows rock rising and sinking to make convection currents in the mantle. Which process is responsible for causing rock to rise?
Rock is heated.
Rock undergoes intense pressure.
Rock rapidly cools off.
Rock increases in density.
Salia is creating a diagram to show how rocks go through the steps of the rock cycle. Her diagram shows the processes that occur to change rocks from one type into another type.
Which of the following can occur right after a rock is weathered?
The sediment can form magma.
It gets compacted and forms sedimentary rock.
It forms metamorphic rock.
It melts and forms igneous rock.
Deonte compared continental crust to ocean crust and saw that they had differences, which helped him to understand how they behave. Read each word or phrase that describes ocean crust and continental crust. Drag each item into the correct box.
underwater
dense
lighter
thicker
Continental Crust
Oceanic Crust
Jonah and Rachel volunteer at the recycling center sorting and organizing recyclable objects. Jonah is sorting aluminum cans and crushing the cans to fit more in the bag. Rachel is sorting metal and steel objects into appropriate bins.
Jonah realizes that even though he is crushing the cans, the amount of material in each can is unchanged. Which of the following describes the process that is taking place?
a change in mass of an object
a change in chemical bonds within the object
a change in form or appearance of matter
a change in matter that produces one or more new substances
Jonah and Rachel volunteer at the recycling center sorting and organizing recyclable objects. Jonah is sorting aluminum cans and crushing the cans to fit more in the bag. Rachel is sorting metal and steel objects into appropriate bins.
Rachel notices that many objects have rusted. Rusting is a chemical change that some metal and steel objects undergo when they are exposed to oxygen. Which option best describes a chemical change?
a change from a liquid state to a gas state
a change in form or appearance of matter
a change in matter that produces one or more new substances