Vocabulary
The ability to cause change is called...
energy
The sun gives off this type of energy. So do fire and light bulbs.
Light
Name a physical property of matter.
color, texture, flexibility, whether or not it conducts heat, magnetic or not, if substances dissolve in water or not, hardness, density, physical state of matter
A force is...
a push or a pull.
All the living things found in an area. A grassland one of these might include giraffes, grasses, trees, grasshoppers, and zebras.
community
A force that pulls things toward each other is called...
gravity
This energy moves objects, like when you throw a ball or jump.
Mechanical Energy
Texture can be described as...
how smooth or rough something is.
True
True or False: Adaptations can be physical or behavioral.
True
The mass of a substance in a certain volume is called...
density
Your headphones give off this type of energy.
Sound
How easily a substance bends
Flexibility
True or False-When you pull an object, you exert a force away from you.
False, you exert a force towards you when you pull an object
True or False: Asexual reproduction is reproduction with two parents.
False
What is the difference between volume and pitch?
Volume-how loud a sound is
Pitch- how high or low a sound is
Batteries use this type of energy to power things.
Electrical Energy
Metals like copper, silver, and iron do this well. Plastics, wood, rubber, and glass do not.
Conduct or transfer heat or electricity
If a bowling ball and ping pong ball are hit with the same amount of force at the same time, which one will move farther and faster? Why?
The ping pong ball will move faster than bowling ball because the ping pong ball has less mass than the bowling ball.
The viceroy butterfly and the monarch butterfly are examples of what?
Mimicry, where one animal looks like another
The energy of tiny moving particles to make up matter is called...
heat
Fire wood stores this type of energy and releases it when it is burned.
Chemical Energy
A ball rolls across the floor. What eventually slows and stops the ball-friction or gravity? Why?
Friction is the force between two objects that are rubbing together. As the floor and the ball touch, the ball slows down. Gravity only pulls down on objects, and since the ball is already on the floor gravity is not changing the ball's motion.
How can fertilizers harm an ecosystem?
Fertilizers can get washed into nearby water sources, causing too many of one type of organism to grow. This plant may take over an area because it is getting so much nutrients, causing other plants to die out