Kyle and Jan are comparing two samples of matter. They make a table of the properties of each sample.
Which property provides the best evidence that both samples are solids rather than liquids?
A. Color
B. Mass
C. Shape
D. Volume
VOLUME!
100
What is the difference between climate and weather?
WEATHER HAPPENS NOW AND CLIMATE HAPPENS OVER TIME!
100
What occurs because light bends?
REFRACTION!
100
Ruben slides a book across the floor. Eventually the book will stop moving. What force causes the book to come to rest?
a. Friction
b. Gravity
c. Pulling
d. Pushing
FRICTION
100
Which part of the body protects organs, provides support, and forms blood cells?
SKELETON!
200
All of the following are mixtures except this..
a. salt and pepper
b. nuts, raisins, and m&m’s
c. iron filing and salt
d. flour, oil, and eggs mixed and boiled
FLOUR, OIL, AND EGGS MIXED AND BOILED!
200
What percentage of Earth’s surface is covered with water?
75 PERCENT!
200
The foods we eat provide energy. What type of energy do we get from our food?
CHEMICAL ENERGY!
200
Magnets have a negative and positive pole. What happens if you try to touch the positive ends of two magnets together?
THE POSITIVE POLES WILL REPEL EACH OTHER!
200
Which organ in the fish is most similar to the human respiratory system?
a. The fins
b. The gills
c. The skin
d. The swim bladder
THE GILLS!
300
What are ways we can make solutes dissolve faster?
INCREASE TEMPERATURE, DECREASE PARTICLE SIZE, OR STIR!
300
Out of the three climate zones, which one covers most of the United States?
TEMPERATE CLIMATE ZONE!
300
Batteries store energy. In devices such as CD players, the energy from the battery is converted into a different form of energy. Which diagram best shows the energy conversions when the CD player is turned on?
a. Electrical -> Chemical -> Motion and Sound
b. Chemical -> Electrical -> Motion and sound
c. Electrical -> Chemical -> Sound and Heat
d. Chemical -> Electrical -> Sound and Heat
CHEMICAL -> ELECTRICAL -> MOTION AND SOUND!
300
A toy car rolling along different surfaces will experience different amounts of friction. The toy car would encounter the most friction when rolling on which of the following surfaces?
a. A sandy beach
b. A sheet of glass
c. A smooth wooden board
d. A piece of construction paper
A SANDY BEACH!
300
Which of the following organs keeps the right balance of salts and acids in the body by filtering the blood?
a. The pancreas
b. The intestines
c. The kidneys
d. The lungs
KIDNEYS!
400
What is the best tool to use to separate iron filings from sand?
MAGNET!
400
What is the only form of solid precipitation that can fall to the ground when it is warm?
HAIL!
400
Iron becomes rust when it reacts with oxygen. Which of the following is another example of a material undergoing a chemical change to become another material with different characteristics?
a. Boiling Ice
b. Burning wood
c. Freezing water
d. Shattering Glass
BURNING WOOD!
400
Cristy is conducting an experiment on speed. Her procedure is to let go of the car and measure how long it takes for the car to travel 2 meters. What change could be made to increase the speed of the car?
a. Use a car that less mass
b. Decrease the height of the ramp
c. Push on the car as he lets go of it
d. Put sandpaper on the surface of the ramp
PUSH ON THE CAR AS HE LETS GO OF IT!
400
Which answer best describes the purpose of the liver in the human body?
a. The liver mixes blood and oxygen
b. The liver removes excess fluids from the body
c. The liver stores large quantities of blood and oxygen
d. The liver cleans the blood coming from the digestive organs
THE LIVER CLEANS THE BLOOD COMING FROM THE DIGESTIVE ORGANS!
500
What is the best method for separating a mixture of salt and water?
BOILING THE SALT WATER!
500
One morning, Ryan noticed there were tiny drops of water on the grass as he walked to school. That afternoon, he did not see any drops of water on the grass when he returned home. Which of the following best explains what happened to the drops of water?
A. The heat from the air caused the water drops to boil.
B. The air cooled the water and caused the drops to freeze.
C. The Sun heated the water and caused the drops to evaporate.
D. The energy from the Sun caused the water drops to condense.
THE SUN HEATED THE WATER AND CAUSED THE DROPS TO EVAPORATE!
500
Mrs. Carton visits a theme park that has a roller coaster that travels upside down. Which of the following is the best explanation for why the roller coaster car stays in contact with the track when it travels upside down?
a. the track and car are held together by a series of strong magnets
b. the car has large amounts of thermal energy that binds it to the track
c. the car has chemical energy that resists the effect of gravity when it is upside down
d. the car has mechanical energy and is fast enough that gravity cannot pull the car down
THE CAR HAS MECHANICAL ENERGY AND IS FAST ENOUGH THAT GRAVITY CANNOT PULL THE CAR DOWN!
500
Mrs. Copeland is playing with a soccer ball at the top of a hill. She kicks the ball and it rolls down the hill. Which of the following best describes what happens as the ball rolls?
a. The force of gravity pulls the ball downhill
b. The force of friction causes the ball to roll faster down the hill
c. The force of gravity is balanced by air resistance acting on the ball
d. The force of friction is greater than the force of gravity acting on the ball
THE FORCE OF GRAVITY PULLS THE BALL DOWNHILL!
500
What is the purpose of the pancreas?
a. Mixing blood and oxygen
b. Removing excess fluids from the body
c. Storing large quantities of blood, minerals, and vitamins
d. Helping with digestion by secreting enzymes to process sugars
HELPING WITH DIGESTION BY SECRETING ENZYMES TO PROCESS SUGARS!