Force and Motion
A girl puts many pounds of rocks in an empty wagon. How will the motion of the wagon be different after it is filled with rocks?
What is it will be more difficult to speed up and slow down.
James observes a barometer on a clear day. The barometer shows that the air pressure is quickly dropping. What weather will most likely result from the drop of air pressure?
What is cloudy and rainy.
Students observed a piece of iron change from shiny to rusty. What caused this change?
What is a chemical change.
Which is most responsible for the uneven heating of the air in the atmosphere?
What is convection.
Which is an example of a single-celled organism?
A amoeba
B insect
C fish
D worm
What is amoeba.
Which would most likely cause a decrease in a population of herbivores?
A an increase in the number of producers
B a decrease in the types of decomposers
C an increase in the types of plants
D an increase in the number of carnivores
What is an increase in the number of carnivores
A ball is kicked across a sidewalk and onto a road covered in small rocks. Which best describes the effect the rocky road will have on the ball?
What is the rocky road will decrease the speed of the all because of friction
How does the energy from the sun influence the water cycle?
What is by turning liquid water into water vapor.
Which is an example of a different substance being formed?
A glass breaking
B metal melting
C water freezing
D wood burning
What is D: Wood burning.
A pot is heated on a stove. Which process causes the metal handle of the pot to also become hot?
What is conduction.
What is the relationship between the respiratory system and the circulatory system?
What is the respiratory system exchanges oxygen and carbon dioxide with the circulatory system.
A mouse eats seeds and insects. Which best describes the role of the mouse?
What is a consumer and an omnivore.
A bowling ball moves across a flat surface at 7 feet per second. If a student is asked to calculate the total distance traveled by the ball, what other information does the student need to know?
What is the total time the ball rolled.
Which is most responsible for the changes in seasons?
What is the tilt of the earth.
Two liquids are poured together, and a solid substance forms with no liquid remaining. Liquid 1 has a mass of 200 grams, and liquid 2 has a mass of 100 grams. What would be the total mass of the solid substance formed?
What is 300 grams
Which best describes why winds at the beach change direction between day and night?
What is because temperatures over land and water change.
Which system in the human body includes the heart, blood, arteries, and veins?
What is cardiovascular system.
Which is example of a decomposer?
A a hawk
B a mouse
C a flower
D a mushroom
What is a mushroom.
What causes a wagon to speed up when going down a hill?
What is gravity.
What is the cause of rising surface temperatures in the Pacfic Ocean, drought in the western United States, and flooding on the Pacific coast of South America?
What is El Nino.
If 10 grams of water are added to 5 grams of salt, how much salt water will be made?
What is 15 grams.
People sitting around a campfire are able to feel the heat from the fire. How are the people able to feel the heat from the fire without touching the fire?
What is radiation.
Which is a characteristic of a dog that is most likely a result of its environment?
A its color
B its length of ears
C its food preference
D its ability to see in the dark
What is its food preference.
As more people have moved to the beach, the sea turtle population has decreased. Which is most likely the cause of this decrease?
A tropical storms
B increase in predators
C habitat loss
D warmer temperatures
What is habitat loss.
Four solid balls, each with a different mass, are moving at the same speed. Which ball would require the most force to stop its motion?
A ball with a mass of 5 kg
B ball with a mass of 10 kg
C ball with a mass of 15 kg
D ball with a mass of 20 kg
What is D: A ball with a mass of 20kg
Which best describes a hurricane?
What is a low pressure system.
What is the best example of a physical change?
What is water turning into ice.
Answers will vary.
Joanne fries an egg each morning in a metal frying pan with a rubber coated handle. Which best explains why the handle of the frying pan is coated in rubber?
What is rubber is a poor conductor of heat.
Some people have a “hitchhiker’s” thumb that allows them to bend their thumbs more than other people. How do these people most likely get this trait?
What is it is inherited.
A simple food chain includes hawks, lizards, and insects. Which will most likely happen to the lizard and hawk populations if a pesticide is sprayed to kill the insects, and the lizard and hawk populations cannot find other food in this ecosystem?
What is both the lizard population and the hawk population will decrease.