Science 7
The vessel which takes the blood from heart to lungs, is known as____________.
PULMONARY ARTERY
Taylor stirs 2 grams of salt into a cup of water. He then tries to get the salt back by evaporating the water. In this experiment, the mass of salt recovered would be the same as the initial mass or different?
THE SAME
The solution with pH 8 is considered ___________.
WEAK ALKALI
Worms break down dead plants in the soil to release nutrients. Which process is this?
DECAY/DECOMPOSITION
Involuntary wave like movement of esophagus is called___________.
PERISTALSIS
Where does all the energy for everything come from?
SUN
Tiny hairs are moved due to vibrations in fluid in the__________.
COCHLEA
A gazelle eats grass and is later eaten by a tiger. Which is the prey?
GAZELLE
This part of your blood is made up of 90% (mostly) water.
PLASMA
Photosynthesis is the process that provides energy for all life. TRUE/ FALSE
TRUE
In swimming pools, they appear shallower than they are actual because of_________.
REFRACTION
What is a model that shows ALL the feeding relationships in an ecosystem?
FOOD WEB
In an atom, which has the least mass?
ELECTRONS
Fire can not burn without?
OXYGEN
The distance from one crest to another or one to another wave is called a___________.
WAVELENGTH
Suppose that the pesticides used by humans have killed many of the herbivores in an ecosystem. What will most likely happen?
FOOD WEB COLLAPSE/ PRODUCERS INCREASE
The series of processes that change one type of rock into another type of rock is called________.
ROCK CYCLE
Green plants produce their own food during photosynthesis. Which substances are also a product of photosynthesis?
OXYGEN
Overlapping of green and red light colors forms__________.
YELLOW
A primary consumer is a
2ND TROFIC LEVEL/ HERBIVORE/ PLANT EATER