A person's body uses the digestive system to break down food to use it later as energy. What is this type of reaction ?
Chemical reaction
100
Which of these describes a eukaryote?
A. Multi-cellular
B. Unicellular
C. Single celled organisms
D. Asexual
A. Multi-cellular
100
When two plates collide what is this plate movement called?
Convergent Movement
100
The earth's tilt and rotation around the sun causes what?
Seasons
100
What is an example of a thermal transformation?
A. Television
B. Toaster toasting bread
C. digesting food
B. Toaster toasting bread
200
How many protons does Fe, Iron have?
26 protons
200
What system is the most complex and fragile ?
The Nervous System
200
When two plates divide what do they form ?
Rift valley
Underwater volcano
Mid-ocean ridge
200
If the moon was a full a week ago, it should be a _______ moon now.
A.New
B. First Quarter
C.Waxing Gibbous
D.3rd Quarter
D. 3rd quarter
200
A solar cell converts _______energy of sunlight into electrical energy that can be used to light a bulb or power a computer.
A. Electrical
B. Potential
C. Kinetic
D. Radiant
D. Radiant
300
All of the above are examples of chemical changes except?
A. melting an ice cube
B. rusting iron
C. digesting sugar
D. combustion of wood
A. melting an ice cube
300
What are the difference between a plant cell and a animal cell?
Plant cell has a cell wall and chloroplast and a animal cell does not
300
Which of these is an example of a transform boundary
A. Mid-ocean ridge
B. Mountains
C. Earthquake
D. Volcano
C. Earthquake
300
How many days does it take for the moon to orbit earth?
A. 1 year
B. About 29 days
C. 365 days
D. 24 hours
B. About 29 days
300
A moving car is an example of what force energy?
A. Kinetic energy
B. Potential energy
C. thermal energy
A. Kinetic energy
400
Which one of this shows a physical reaction?
A. breaking down
B. acids
C. chewing
D. changing
C. chewing
400
What system does it transport needed substances throughout the body and carries away waste
A. Muscular
B. Digestive
C. Circulatory
D. Immune
C. Circulatory
400
What is a fault
A fault is a crack in the earth's crust
400
All of these are examples of kinetic energy except?
A. Machines
B. Lightning
C. Wind energy
D. Wave energy
B. Lightning
400
What is the average speed of this athlete based on the data if the time is 2 seconds and the distance is 11.9 meters?
A. 2 m/s
B. 6 m/s
C. 50 m/s
D. 60 m/s
B. 6 m/s
500
How many neutrons would Flourine have if it contains a total mass of 18.998 and 9 protons?
11 neutrons
500
What is the definition of a convergent boundary and what do they form?
Convergent boundary is when two plates collide and form a
- Trench
- Volcano
- Mountains
500
How many days does it take for the earth to revolve around the sun.
About 365 days
500
Which energy transformation occurs when a light bulb is illuminated?
A. electrical to light energy
B. kinetic to potential
C. mechanical to thermal
D. potential to chemical