Light
Clear glass, water, and air are examples of materials that can be seen through clearly.
What is transparent?
A ball thrown into the air, changes direction and falls back to the earth. This force on the ball is
What is gravity?
These star forms never change because they stars do not move.
What are constellations?
A knife is an example of this type of simple machine.
What is a wedge?
Light, when it reflects off a shiny surface moves in a ______ path.
What is angled?
describes a material through which things on the other side can be clearly seen.
What is transparent?
The force that slows or stops motion between two surfaces that are touching.
What is friction?
This space lab is operated by people who live there and study the solar system.
What is the International Space Station?
Blinds on windows and a flagpole are examples of this type of simple
What is a pulley?
To change the pitch of a sound, you must change the material making the vibration, the speed of the vibration, or the strength of the vibration.
What is the speed of the vibration?
This type of lens is used to make magnifying glasses.
What is convex lenses?
The heavier an object is the more/less force you must apply to it to move it.
What is more?
These are caused by the earth's rotation on its axis and the earth revolution around the sun.
What are season?
A shovel is an example of this type of simple machine.
What is a lever?
weather conditions such as rainfall, temperature, wind conditions over a very long period of time is
What is climate?
This is used to bend light at different angles, separating light into different colors?
What is a prism?
The harder a person kicks a soccer ball, the faster it moves because
What is the force is greater?
Looking at an object through this type of lens would cause the object to appear smaller.
What is a concave lens?
A wheel barrow has this type of simple machine that makes it easy to move objects forward and backward.
What is a wheel and axle?
The atmospheric conditions in a certain place at a certain time.
What is weather?
Materials that can not be seen through are described as....
What is opaque?
This force pulls objects toward the Earth.
What is gravity?
At this temperature, water becomes a solid.
What is 0°C?
A ramp is an example of this type of simple machine.
What is an incline plane?
All sound is produced by
What is vibration?