What is the next number in the following pattern: 15, 30, 45, 60, ?
75
The amount of time it takes the earth to rotate once on its axis is called
a day
The force that pulls a falling apple to the ground is called
gravity
When two hands clap together, they produce what primary type of energy
sound
Centimeters (cm) are used to measure
Length (or width, or height)
A person gets their eye color from one of their parents. This is an example of what kind of trait?
The amount of time it takes Earth to complete one orbit around the Sun is called
A crowbar is an example of which type of simple machine
a lever
All energy in an ecosystem can be traced back to
the Sun
The cycle of weather changes on Earth is broken up into four parts throughout the year called
What role does a decomposer play in its ecosystem?
It recycles nutrients (it decomposes dead organisms).
The Sun appears to rise and set everyday due to
The Earth's rotation
The force that causes a ball to move more slowly when rolled over sand than when rolled over smooth ground is called
friction
Animals that eat other animals are called
predators
An egg becomes a larva, which becomes a pupa, which becomes a butterfly, which then lays an egg. This is an example of
a lifecycle
The process by which Earth, soil, or sand is gradually wore away by water or wind is called
erosion
An object's _______ moves across the ground and the Sun moves across the sky
Shadow
Walking up a ramp reduces the force required to move something, but it increases the distance required to move that thing. This exchange is called
a tradeoff
An insulator is something that does what?
Slows down the transfer of heat energy
The Water Cycle includes these three stages
evaporation, condensation, precipitation
A camel stores fat in its hump so it can survive up to two weeks without food in the desert. This is an example of
An adaptation
The Moon's appearance changes over the course of a month. This is due to
The Moon's orbit around the Earth
A screw is what type of simple machine wrapped around a cylinder
an inclined plane
A circuit tester is best used to determine an object's
conductivity
Volume is a measure of
how much space something takes up