Thermal Energy
What is a closed system?
A system where nothing can get in or out. An example would be our cups with a lid on and the straw hole taped shut.
Clouds are made up of.
dust, pollen, ice crystals, and water droplets
If an object __________ light, it means light passes through the object.
transmits
What is a tsunami?
An ocean wave caused by an underwater earthquake or volcanic eruption.
What do sensory nerves do?
Carry signals from sense receptors to the brain.
What has to happen in order for evaporation to take place?
Molecules of liquid water have to gain enough energy to break free and go up into the air as water vapor.
What do we know about kinetic energy and particles of matter?
The more kinetic energy particles have the faster they move.
If an object ___________ light, it means light bounces off the object.
reflects
Where do most tsunamis happen?
Around the ring of fire which surrounds the Pacific Ocean.
What do motor nerves do?
Carry signals from the brain to the body.
Where do the water droplets that form on the outside of a glass of ice water come from?They come from the water vapor in the air around the glass.
They come from the water vapor in the air around the glass.
What do we know about cumulonimbus clouds?
They are extremely large. As tall as 20,000 feet.
How do we see objects?
Light bounces off the objects and travels to our eyes.
All earthquakes cause tsunamis.
false
What happens when the doctor hits your knee with a rubber mallet?
The signal is sent to the spinal cord and right back to the leg without going to the brain so your leg kicks out without you thinking about it.
Why does the mass of a closed cup system not change over time?
Because nothing can get in our out of the system.
What happens to air when it is warmed up?
It expands and becomes less dense which causes it to rise
How is a one-way mirror made?
By combining a thin layer of one-way mirror film and a piece of glass.
What type of earthquakes typically cause tsunamis?
Strong, shallow, earthquakes which happen under water.
How do chemical receptors help animals survive?
Chemical receptors in the nose and mouth help animals smell or taste food that may be toxic.
Evaporation can happen even if it is not warm, sunny, and windy outside.
true
What is our air made out of?
78% Nitrogen, 21% Oxygen, <1% CO2
Which part of the eye is the opening which lets in light?
pupil
Which of the following are solutions for protecting communities from tsunami waves?
Seawalls, recurved walls, and mangrove forests.
What are the steps of a body's response to a stimuli?
First, a stimulus is detected by a sense receptor. Second, a signal is sent to the brain. Third, the brain responds.