Your body uses food to do important jobs. Name at least two.
What is to grow new cells, repair tissues, and provide energy for activities.
100
You put a glass with ice in it on the window sill. A little while later you see water droplets on the outside of the glass. You say;
a. the glass has a leak
b. water vapor from the air has condensed on the glass
c. the water moved through the glass to the outside
What is b, water vapor from the air has condensed on the cool glass changing from its gas state back to its liquid state.
100
This is the equation for finding distance.
What is d = xf - xi
100
Delta means this and is shown by this symbol
What is change represented by a triangle?
200
These are the three parts of the cardiovascular system.
What is the heart, blood vessels, and blood cells?
200
Your body needs six types of nutrients. Name at least three.
What are carbohydrates, tags, proteins, vitamins, minerals, and water?
200
You place a closed bottle in a container of ice water. Later you notice the sides of the bottle have shrunk in. You say:
a. The bottle is shrinking
b. The air is moving more quickly.
c. The air has cooled and is taking up less space
What is c; the air has cooled and slowed down so down it takes up less space?
200
Xi = 10, Xf = 85, d = ?
What is 85-10 = a distance of 75
200
Xf means
What is final position?
300
These are three functions of the cardiovascular system.
What is to move materials like food and oxygen through the body, to remove waste like CO2, and to carry disease fighters?
300
If you ate 25 grams of a carbohydrate, you would have eaten this many calories.
What is 100 calories?
300
A dry plate is held above a pot of boiling water. Soon the plate begins to drip. You say:
a. the water vapor is evaporation from the plate
b. the water vapor is transpiring
c. the water vapor is condensing on the plate
What is c; the water vapor is condensing from the steam on the plate as it cools?
300
Xi = 25cm, Xf = 110cm, d = ?
What is 110 cm - 25 cm = distance of 85cm
300
Xi means
What is initial position?
400
In order to carry oxygen and food, the cardiovascular system has to interact with these two other body systems.
endocrine, reproductive, immune, respiratory, circulatory, digestive, elimination
What are digestive (food) and respiratory (oxygen)?
400
These are how fat cells in the body can be useful.
What is they protect and support your internal organs and act as insulation to keep you warm?
400
Two clear substances are mixed. You notice that as you stir them the liquid turns cloudy and bubbles slightly. You say:
a. a chemical reaction took place
b. a change of state took place
c. there was no reaction
What is a: a chemical reaction took place because you saw a color change and a gas produced?
400
Pogo stick Xi=5, Xf = 14
Car Xi = 3, Xf = 30
Difference?
What is 14-5 = 9
30 - 3 = 27
Difference = 27 - 9 = 18
400
C12H22O11 = these elments and is
(choose one)
calcium carbonate
sodium bicarbonate
magnesium sulfate
sucrose
What is carbon 12, hydrogen22, oxygen11 = sucrose or sugar
500
These are ways a person can make his or her cardiovascular system strong and healthy.
What is exercise to build a strong heart and eat good foods to keep the blood vessels clean and elastic?
500
A small piece of cherry pie is 200 calories.
A small candy bar is also 200 calories.
Which would be healthier for you? Why?
The cherry pie would be healthier because it contains whole cherries (fruit and fiber) while the candy has no fiber, more sugar, and fewer nutrients.
500
Steel wool was placed in a test tube near water. What evidence was there that a chemical reaction took place?
What is it developed rust, a change in color to orange in spots and black in others.
500
Truck Xi = 20, Xf = 100
Car Xi = 50, Xf = 150
Which traveled farther? What was the difference in distances traveled?
What is
100 - 20 = 80
150 - 50 = 100
100 - 80 = 20
The car traveled 20 miles farther than the truck.
500
Ice in a glass of pop melts. Is this a chemical change or a change of state?