Science OST Practice

Students are testing whether the height of a ramp affects the distance a car will roll. What needs to remain constant?

• The length of the ramp

• The car

• The surface of the ramp

• All stay constant except for the independent variable.

The outermost layer is the ________.

• mantle

• crust

• inner core

• outer core

The layer below the crust is the ____________.

• oceanic crust

• mantle

• inner core

• continental crust

The core is made up mostly of _______________.

• oxygen

• magnesium

• iron

• carbon

Tags

NGSS.MS-PS1-1

All know life exist on this layer.

• inner core

• mantle

• core

• crust

Tags

NGSS.MS-LS1-5

80% of the Earth's volume is made up of the _____.

• continental crust

• core

• mantle

• oceanic crust

The inner core is ____________.

• solid

• molten

• unknown

• liquid

The most abundant element in the mantel and the crust_________________.

• magnesium

• silicon

• oxygen

• iron

What is the name for a push or pull?

• movement

• force

• Speed

• Density

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

Which one needs a greater net force to move, a kilogram of feathers or a kilogram of iron? 

• feathers 

• iron

• same

• depends on their friction

Tags

NGSS.MS-PS2-2