Life Science
A tree is a _________ because it makes its own food from sunlight.
Any push or pull that acts on an object, changing its speed, direction, or shape is called a _________.
Force
Rocks are mixtures of _____________ that make up the surface of Earth.
Minerals
A __________ is a collection of planets and other objects that orbit a star.
Solar System
_________ is a part of every organisms life cycle because it is the ability for a mature organism to have offspring.
reproduction
The breakdown of organic waste materials into usable nutrients is called ___________________.
Decomposition
What two properties of a canyon wall make it produce an echo?
The walls are hard and smooth.
Metamorphic, sedimentary, and igneous are all part of the ________ _________.
Rock cycle
____________ causes the moon to orbit the Earth and the Earth to orbit the sun.
Gravity
__________ ____________ results in new substances with different properties because it occurs when chemical reactions change the composition of rocks by rearranging the atoms or molecules.
Chemical weathering
____________ is a visual that shows the network of paths energy travels in an ecosystem.
Food web
___________ slows motion because it transfers energy out of an object or system, turning mechanical energy into heat whenever two objects rub against each other.
Friction
The _______ _________ connects all or Earth's systems because it describes the circulation of water through the hydrosphere from Earth's surface to the atmosphere and back.
water cycle
________ used to be considered a planet, but is now considered a dwarf planet.
Pluto
What are the mount of salt, temperature of the water, plankton, and tiger shark all a part of?
An ocean ecosystem.
Offspring ___________ traits from their parents or ancestors.
inherit
Bicycle reflectors only light up when another light source reflects off of them. How do bicycle reflectors work?
They bounce light back from other sources.
The water cycle influences _________ which is the average weather over a span of 30 years.
Climate
What do all solar systems have in common?
They all have a central star which all planets orbit.
Melting an ice cube is an example of ____________ because it does not affect the chemical structure of a substance.
Physical Change
A _____________ is a trait that helps an organism survive in its environment.
adaptation
Cory holds up different materials next to a permanent magnet. What would indicate that a material is magnetic?
The material would attract or repel the material being tested.
Farmers that use a beetle pesticide no longer see birds on their farm. What effect might the pesticide have on the food web?
the pesticide poisons the birds that eat the beetles
the pesticide repels the birds
Why do planets have different numbers of moons?
Larger planets tend to have more moons because they have stronger gravitational forces that attract more objects.
Squirrels are __________ because they are living or were once living.
Organic