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Weather/Climate
Ecosystems
Human Body/Cells/Genetics
Force and Motion
Heat Transfer
100
Which will most likely result from a low-pressure weather system? A warm temperatures B cloudy conditions C clear conditions D cool temperatures
What is B cloudy conditions
100
Which is most responsible for recycling dead plants and animals in an ecosystem? A water B bacteria C fish D insects
What is B bacteria
100
Which characteristic would a child not inherit from one or both of its parents? A freckles B hair style C eye color D dimples
What is B hair style
100
A child rides a wagon down a hill. Eventually, the wagon comes to a stop. Which is most responsible for causing the wagon to stop? A gravity acting on the wagon B friction acting on the wagon C the mass of the wagon D the mass of the child
What is B friction acting on the wagon
100
In which way are evaporation and condensation similar? A Both cause decreases in air temperature. B Both cause increases in air temperature. C Both are caused by the warming of the atmosphere. D Both are caused by changes in heat energy.
What is D Both are caused by changes in heat energy.
200
Which has the greatest effect on wind speed? A precipitation B cloud cover C wind direction D air pressure
What is D air pressure
200
Which will most likely cause a decrease in predator populations? A an increase in prey populations B a decrease in prey populations C a decrease in decomposers D an increase in producers
What is B a decrease in prey populations
200
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 C its food preference
200
Which best describes the speed of a ball as it is thrown straight up into the air and comes back down? A The ball goes up at a constant speed, stops, then comes down at a constant speed. B The ball goes up at a constant speed, stops, and increases speed as it comes down. C The ball goes slower and slower as it goes up, stops, and then goes faster and faster as it comes down. D The ball goes slower and slower as it goes up, stops, and then comes down at a constant speed.
What is C The ball goes slower and slower as it goes up, stops, and then goes faster and faster as it comes down.
200
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
300
Which best describes why winds at the beach change direction between day and night? A because the temperatures over land and over water change B because warm air over land sinks and stays in place over land C because cool air rises and is replaced by warm air from the ocean D because cool air sinks and stays in place over land
What is A because the temperatures over land and over water change
300
How would the woodpecker population in a forest area most likely be affected if a housing development is built in that area? A They would produce more offspring. B They would change the color of their feathers. C They would experience a decrease in available food. D They would experience a decrease in competition.
What is C They would experience a decrease in available food.
300
Which body system processes foods into a useable source of energy? A circulatory B digestive C nervous D skeletal
What is B digestive
300
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 ball with a mass of 20 kg
300
A pot is heated on a stove. Which process causes the metal handle of the pot to also become hot? A combustion B convection C radiation D conduction
What is D conduction
400
On a cold, cloudy day, the local weather forecaster predicts that a high-pressure system will be moving into the area in the next 24 hours. Which weather conditions will this system most likely bring to the area? A stormy B sunny C snowy D hot
What is B sunny
400
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? A Both the lizard population and the hawk population will increase. B Both the lizard population and the hawk population will decrease. C The lizard population will increase, but the hawk population will decrease. D The lizard population will decrease, but the hawk population will increase.
What is B Both the lizard population and the hawk population will decrease.
400
A scientist is trying to decide whether an organism is unicellular or multicellular. Which information would help the scientist most to make her decision? A size of the cells of the organism B what the organism eats C how many types of cells are in the organism D how fast the organism grows
What is C how many types of cells are in the organism
400
A student notices that an inflated balloon gets larger when it is warmed by a lamp. Which best describes the mass of the balloon as a result of this change? A The mass of the balloon increases because the size of the balloon has increased. B The mass of the balloon increases because the temperature of the balloon has increased. C The mass of the balloon stays the same because the gas inside the balloon still has the same mass after it warms up. D The mass of the balloon stays the same because warming decreases the mass enough to cancel out the effect of increasing the size.
What is C The mass of the balloon stays the same because the gas inside the balloon still has the same mass after it warms up.
400
One morning, Jane notices drops of water on the outside of a window. Later in the day, she notices that the drops have disappeared. What most likely caused the drops to disappear? A The water condensed on the plants around the house. B Energy from the sun caused the water to evaporate. C The water cooled enough to turn into water vapor. D Wind blowing on the window turned the water into vapor.
What is B Energy from the sun caused the water to evaporate.
500
The weather forecast indicates that a warm front will be moving into the area in the next 24 hours. Which type of weather will most likely result? A clear skies and cold temperatures B clear skies and hot temperatures C cloudy skies and rainy weather D heavy snow and ice
What is C cloudy skies and rainy weather
500
Which characteristic do single-celled organisms and multicellular organisms have in common? A Both have cells with specialized functions for each life process. B Both perform all life processes within one cell. C Both have a way to get rid of waste materials. D Both are able to make food from sunlight.
What is C Both have a way to get rid of waste materials.
500
What can cause a moving object to increase its speed in a forward direction? A a force pushing on the object from the opposite direction B a force that continually acts on the object in the direction the object is moving C an increase in the mass of the object D a decrease in the mass of the object
What is B a force that continually acts on the object in the direction the object is moving
500
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? A The heat from the fire travels through the ground and heats the ground around the people. B The heat from the fire is conducted through air molecules to the people. C The heat from the fire rises in the air and then settles around the people. D The heat from the fire radiates from the fire to the people.
What is D The heat from the fire radiates from the fire to the people.