Light & Sound
What are the colors of the visible light spectrum, in order?
Red, orange, yellow, green, blue, indigo, violet.
What is the term for a living thing that can make its own food?
A producer.
What are the three types of rocks?
Igneous, sedimentary, & metamorphic rocks.
What is the name of the fixed point on a lever around which it pivots?
Fulcrum.
What are the two divisions of the brain?
The left and right hemisphere.
What happens when light bounces off a surface?
Reflection.
What is the role of a producer in an ecosystem?
Producers create their own food through photosynthesis, forming the base of the food chain.
True or False? A mineral's streak is not always the same as its overall colour.
True.
What is the advantage of using an inclined plane?
It reduces the amount of force needed to move an object vertically, though the distance is increased.
What are the five vital organs?
The brain, heart, lungs, kidneys, and liver.
What is the name for the bending of light as it passes from one medium to another?
Refraction.
Name two examples of abiotic factors in an ecosystem.
Water, sunlight, temperature, soil, air, etc. (any two).
What scale is used to measure how hard a rock is?
The Mos Hardness Scale.
Give an example of a wheel and axle in use.
A doorknob, a steering wheel, a bicycle wheel.
What is the largest organ?
The skin is the largest organ in the human body.
Why does sound travel faster in solids than in liquids or gases?
In solids, particles are more tightly packed, allowing for faster transfer of vibrations from one particle to the next.
What are the living parts of an ecosystem called?
Biotic factors.
What type of rock is limestone?
Sedimentary rocks.
What is the mechanical advantage of a screw?
The distance between the threads.
What is the hardest substance in the human body?
The tooth enamel.
Why does a guitar sound different on a space station?
On a space station, there is no air to carry the sound waves, so a guitar would not produce the same sound as it would on Earth.
What is the role of an organism in its habitat called?
A niche.
What is the process by which sediments are compacted and cemented together?
Lithification.
How does a pulley make work easier?
It can change the direction of force and/or reduce the amount of force needed to lift a load.
What does the lymphatic system consist of?
The lymphatic system consists of a network of lymphatic vessels, lymph nodes, lymphoid organs, and lymphatic tissue.