Light & Matter
What must happen for you to see an object?
Light must reflect off the object and into your eyes.
What happens to particles when temperature increases?
They move faster.
What causes Mt. Everest to grow each year?
Converging tectonic plates.
What causes day and night?
Earth’s rotation on its axis.
What is a cell?
The building block of all living things
What happens when light hits a surface?
It can be reflected, absorbed, or transmitted.
What is condensation?
When gas turns into a liquid due to cooling.
What kind of plate boundary forms new ocean crust?
Divergent boundary.
How long is one Earth rotation?
24 hours
What part of the cell controls all the activities?
Nucleus
What is the purpose of a scale model in science?
To represent something too large or small to study directly.
What’s the main difference between boiling and evaporation?
Boiling happens throughout the liquid; evaporation only at the surface.
What type of plate is denser—continental or oceanic?
Oceanic.
What is Earth's revolution?
One full orbit of Earth around the Sun.
Which structure provides energy for the cell?
Mitochondria
What does qualitative data describe?
Characteristics like color, texture, or smell.
What causes particles in liquid to spread apart when heated?
Increased kinetic energy
What evidence shows continents were once joined?
Fossils, rocks, and shapes of continents.
Why don’t we see a lunar eclipse every full moon?
The Moon’s orbit is tilted.
Which type of cell has a cell wall and chloroplasts?
Plant cell
In "Do materials affect how much light is transmitted?", what is the dependent variable?
The amount of light transmitted/reflected.
How does air temperature change as altitude increases?
It decreases.
What drives the movement of tectonic plates?
Convection currents in the mantle.
Why do the Sun and Moon appear the same size?
The Moon is much closer even though it’s smaller.
What is the main function of ribosomes in a cell?
Build proteins for the cell