Part 1
A student notices that an inflated balloon gets larger when it is warmed by a lamp. Which best describe the mass of the balloon as a result of this change?
The mass of the balloon stays the same because the gas inside the balloon still has the same mass after it warms up
Which best describes a characteristic of the jest stream?
It forms a boundary of cold air mass and a warm air mass
In a grassland ecosystem, if the population of eagles suddenly decreased, what will most likely be the effect on the rest of the ecosystem?
The ecosystem will become overpopulated with snakes
What must occur before clouds can form?
Which characteristic of a dog is most likely a result of its environment?
Water vapor must lost heat energy
It's food preference
What is the cause of rising surface temperatures of the Pacific Ocean, drought in the western United States, and flooding on the Pacific coast of South America?
Which is most likely to cause a decrease in predator population?
El Nino
decrease in prey populations
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?
The heat from the fire radiates from the fire to the people
Give a statement that best describes a bacterial cell.
It is a complete organism
A litter of kittens have traits that are similar to the mother cat and the father cat. Which best explains the situation?
the kittens inherit some of their traits from their mother and some of their traits from their father
Which process allows green plants to control the amount of water stored in their leaves?
Which trait do children most likely inherit from their parents?
transpiration
Shape of earlobes
What will most likely result when the jet stream moves south of North Carolina?
A simple food chain includes hawks, lizards, and insects. Which will most likely happen to the lizard and hawk population if a pesticide is sprayed to kill the insects, and the lizard, and the hawk populations cannot find other foods in this ecosystem?
North Carolina will experience cold weather
Both the lizard population and the hawk population will increase
Bill stands in a swimming pool and notices that the water around his feet is a lot cooler than the water near the surface. Which process causes this difference in temperature?
convection
Write a characteristic that single celled organisms and multicellular organisms have in common.
Both have a way to get rid of waste materials
Give an example of an inherited trait.
nose shape
One morning, Jane notices drops of water on the outside of a window. Later in the day, she notices that the drips have disappeared. What most likely caused the drops to disappear?
Energy from the sun caused the water to evaporate
A scientist is trying to decide whether an organism is unicellular or multicellular. Which information would help the scientist most to make her decision?
Which best explains why children resemble their parents?
how many types of cells are in the organism
they have similar DNA
Andy lives in the southern hemisphere. What season does he most likely experience in August?
Winter
Which system of the human body provides protection to most of the major organs?
skeletal system
A pencil falls off a desk. What moves the pencil toward the floor?
gravity
What happens to metal railroad tracks during the heat of a summer day?
increase in length
Which body system processes foods into a usable source of energy?
Why do dogs have most of the characteristics of their parents?
digestive
they have similar DNA
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 into the area?
sunny
Name the structures that make up the digestive system
esophagus, stomach, intestines
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?
Friction acting on the wagon
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?
cloudy skies and rainy weather
Which is an example of a decomposer?
As more people move to the beach, the sea turtle population has decreased. Which is most likely the cause of this decrease?
mushroom
Habitat loss