A sling psychrometer is used in measuring __________
What is relative humidity.
100
The chemical formula for table salt is NaCl. What elements make up table salt?
What is Sodium and Chlorine
100
What is the main function of the middle ear?
What is amplify the sound waves.
200
A force that cause a change in the motion of an object is called?
What is unbalanced force.
200
Where does a hurricane forms?
What is over warm ocean water.
200
What indicator turns red in an acid, and stays blue in a base?
What is Blue litmus paper.
200
What kind of materials transmit some light, but they also cause it to spread out in all directions.
What is translucent.
300
In order to concentrate a solution, you must add more
What is solute.
300
What device transforms electrical energy into mechanical energy?
What is an electrical motor.
300
Which element in the periodic table is a liquid metal at room temperature?
What is Mercury
300
What hapens to a wave as it passes from one medium to another at an angle?
What is refract.
400
The process of a substance changing into a new substance is called
What is a chemical change.
400
The layer of the atmosphere that weather conditions such as rain, snow,hail or sleet occurs is called?
What is troposphere.
400
What type of noninfectious disease occurs when certain nerve cells in the brain die or damaged?
What is Parkinson's disease
400
What type of electromagnetic spectrum has the longest wavelength and the least amount of energy?
What is radio wave.
500
Friction is a force that acts against motion. What would use to reduce the friction in the moving parts of a bicycle?
What is lubrication.
500
What is the source of chemical energy?
What is battery or food.
500
When the amount of food, water, shelter, and space available in a given area is less than what a various population need, they become ________
What is Limiting factors
500
Which part of the eye is composed of tiny nerves that transfer the energy of the light waves to nerve impulses transmitted to the brain for interpretation as sight?