Science and Engineering
What is a controlled variable?
Something purposely kept the same in an experiment
What was the dependent variable for all investigations?
Temperature of the water over time
How does light travel?
What are hailstorms made of?
What is a tsunami?
What is an independent variable?
What is changed on purpose in an experiment
Particles in hot liquids and gases have more ______ than the particles in cooler liquids and gases.
More kinetic energy
What happens when light shines on an object?
What does the temperature of air do as you move away from the ground and go higher into the atmosphere?
Decrease
What three things can cause tsunamis?
Earthquakes, volcanic eruptions, and landslides
What is measured/observed in an experiment
What is the difference between an open system and a closed system?
In a one-way mirror, what side is reflected and what side is see-through?
The side that has light is reflected and the side that has dark is see-through
What does less dense air do?
What does more dense air do?
Less dense air rises and more dense air sinks
Where are tsunamis most common?
Coast along the ring of fire
What is quantitative data?
Data that is measurable and is collected with tools
The average kinetic energy (mass of object does not matter)
How do we see objects? What must happen?
light must leave a light source, reflect off an object, and travel in a direct path to enter our eyes
What are clouds made up of?
Water droplets, ice crystals, and molecules of gas
Name two structures that help reduce the damage caused by tsunamis?
seawalls, levee, recurved wall, tetrapods, submerged breakwater, rock armor, pine forest, or mangrove forest
What is qualitative data?
Data that is not measurable and collected instead with your senses
How do you find the total kinetic energy of a sample?
Add up the kinetic energy of all the particles in that sample
When does light change directions?
When it travels between different transparent materials
When particles in the air come into contact with the ground, their energy is transferred through what process?
Convection
Why do people out at sea not feel a tsunami when it passes under them?