Weather
A meteorologist reads a barometer at 9:00 AM. He reads it again in the afternoon and notices a significant increase in pressure. What will the weather most likely be that evening for their location?
It will be sunny, and clear evening.
A toy truck with no wooden blocks inside moves at a rate of 11 inches per second. Tyler decides to add 2 wooden blocks to the truck. Now the truck moves at a rate of 8 inches per second. How did adding weight to the truck change its speed?
The more mass is in the truck, the slower it moves.
Which 2 major systems in the human body could be improved by running as an exercise?
respiratory and circulatory
What material makes a good conductor of heat?
metal
Is the ability to run faster and inherited or acquired trait?
acquired
The ___________ ____________ affects the climate of North Carolina by bringing warm water from the south, making temperatures warmer during winter along the coast and bringing more precipitation to our state.
Gulf Stream
A student puts 30 grams of bricks in one wagon and 60 pounds of bricks in another wagon. If I apply the same force to both wagons, which wagon can I expect to move faster?
The wagon with 30 grams of bricks.
cells make up _____________, ___________ make up organs, and organs make up systems.
tissues
Name one way we know a chemical change has occurred.
The formation of a gas, change in color, produces light and heat
What will most likely happen to the squirrel population in an area if the trees are removed?
The squirrel population will move to another area.
On a hot, humid day Carrie notices water droplets had formed on the outside of the glass of iced lemonade she had setting outside on the table. What caused the water droplets to form on the outside of the glass?
condensation
What can we say about an object whose position does not change as time continues to pass by?
The object is at rest.
The digestive system breaks down food into usable nutrients, and the ____________________ system carries these nutrients throughout the body.
circulatory
If I place a rubber ball that weighs 10 ounces outside, then later notice the ball has been warmed by the sun, what would the weight of the rubber ball be now?
10 ounces
This is a food chain in an ocean ecosystem.
plankton---minnows---tuna
The tuna population decreases because of overfishing. How will this affect the other populations in the food chain? (The minnow population will ________ and the plankton population will ________________.)
increase, decrease
On a warm winter day in North Carolina, the wind is blowing steadily from the south. the wind is supposed to change direction the next day and begin blowing from the north. Based on this information, what can you say about temperatures the next day?
Temperatures will decrease.
A boy rolls a ball across 2 different flat surfaces with the same amount of force. The list below describes the motion of the ball on each surface.
Surface 1: Ball rolled 1 meter in 3 seconds.
Surface 2: Ball rolled 2 meters in 3 seconds.
Why did the ball roll further on surface 2?
Surface 2 had less friction than surface 1
Which two systems work together to give the cells the nutrients needed to produce energy?
digestive and circulatory
Mary places some gold, white, and red rocks into a bucket. She shakes the bucket so the rocks are mixed. Jordan claims the rock mixture is a new substance. Is Jordan correct?
Why or why not?
No, a she has not created anything new. She still has gold, white, and red rocks that can be separated back out.
Alyssa's mom can speak Spanish, but Alyssa cannot. Is the ability to speak Spanish an inherited or acquired trait?
acquired
Energy from the sun causes water to evaporate from plants. This is called __________________.
transpiration
Two identical balls, X and Y, roll on a flat, horizontal surface. Ball Y rolls faster than ball X. Which ball will travel a farther distance when timed for 5 seconds?
Ball Y
The trachea, bronchi, alveolus, and lungs make up the ______________ system.
respiratory
On a camping trip, Sonny roasts a marshmallow over a campfire. What type of change is this? (chemical or physical)
chemical
Which one of the examples below is an inherited trait?
favorite food, reading fast, speaking a certain language, handedness (left or right handed)
handedness