Simple Machines
What is a wheel and axle?
A wheel is a circular frame or disk arranged to revolve on an axis. A wheel could be a car’s wheel. An axle is the pin, bar or shaft by means of which a wheel or pair of wheels rotates.
What is water in its gas form called?
Water vapor
How many elements are there?
118 elements
What is the first layer of the atmosphere?
The troposphere
What are the 3 main types of rocks?
Metamorphic, Sedimentary, Igneous rock
What is the fulcrum?
The fulcrum is the center of a wheel and axle.
What are 3 examples of precipitation?
Rain, hail, and snow.
What main 3 elements is the air made up of?
Oxygen, Nitrogen, and Argon.
What is the second atmosphere?
The stratosphere
How are metamorphic rocks formed?
Metamorphic rocks are formed starting from a sedimentary rock. The sedimentary rocks go through metamorphism, heat, and pressure. Then it forms a metamorphic rock.
List 5 examples of a wedge.
A nail, axe, knife, doorstop, needle, etc.
What are the three major processes in the water cycle?
Evaporation, condensation, precipitation.
How do you find the amount of neutrons in an element?
You look at the mass number of atoms and subtract it from the atomic mass
What are the 5 layers of the atmosphere in order?
Troposphere, stratosphere, mesosphere, thermosphere, and exosphere.
What powers Earth's rock cycle?
Earth's internal heat engine
Is it easier to walk up a flight of stairs or a slope?
It would be easier to walk up a slope, although it takes longer it takes less force.
What kind of environment is best for evaporation?
The best environment for evaporation would be hot, dry, and windy climates.
What is the difference between a compound and an element?
An element is composed of one type of atom, making them a pure substance. On the other hand, compounds are made of two or more different kinds of atoms.
What layer of the atmosphere protects us from meteoroids?
The mesosphere protects us from metoeroids.
What rock groups can form from metamorphic rock?
All of them
What are pulley wheels used for?
Pulley wheels are used to change the direction of force and to transmit energy and motion.
What is the order of the water cycle (detailed)?
Evaporation, condensation, precipitation, interception, infiltration, percolation, transpiration, runoff.
How many neutrons are in Iron?
30 neutrons
Which layer of the atmosphere protects us from harmful UV radiation?
What type of rock is granite?
Intrusive igneous rock