What property makes an object sink or float?
Density
What form of energy moves through power lines to homes?
Electrical energy
What is the breaking down of rock?
Weathering
What shape valley does a glacier carve?
U shape valley
Pull a slingshot farther = more _____ on the pebble.
Force
A metal spoon is shiny, hard, and magnetic. What material is it made of?
Metal
Wind spinning a turbine is what form of energy?
Mechanical energy
What is the movement of sediment?
Erosion
What happens when a glacier melts and drops sediments?
Deposition
More force on a slingshot does what to distance?
Makes it go farther
When juice is poured into a new container, it changes _____.
Shape
Why do light-colored shirts appear brighter at night?
They reflect more light
What is the dropping of sediment?
Deposition
Large rocks on beaches that don’t match nearby rocks were likely left by what?
A melting glacier
What do you need to change motion?
A force (push or pull)
Salt water is left in the sun. What happens?
In a circuit, the buzzer won't work when the switch is _____.
Open
Which process makes sand dunes grow?
Wind deposition
Which model shows glacier deposition?
Ice with sand melting and leaving sediment behind
A ball rolling on the ground eventually stops because of what force?
Friction
Put the following items in order from least to most dense.
Cork, Ball of clay, Water
Cork, Water, Ball of clay
Name two things needed to complete an electrical circuit.
Power source (battery), wires, load (like buzzer), closed switch
Explain how a canyon forms.
A river weathers and erodes rock for many years.
Explain how weathering, erosion, and deposition work together to change Earth’s surface. Use an example in your explanation.
Weathering breaks rocks into small pieces. Erosion moves the pieces. Deposition drops them into layers. Example: A river weathers rock, carries sediment, and deposits it to form a delta.
Why does a heavier object need more force to move?
Greater mass