Life Science
When milk is being processed, it must be kept warm enough to kill harmful bacteria. When it is taken in trucks to stores, it must be kept cool enough to stop bacteria from growing. For these criteria only, which material would you choose to test and why?
Foam, because of thermal conductivity.
Why has the lionfish population dramatically increased in the Atlantic Ocean?
Two correct answers.
A. Lionfish are eaten by humans.
B. Lionfish have no natural predators.
C. Lionfish have a fast reproductive rate
D. Lionfish can reach depths of 100 meters
E. Lionfish have been present in the Atlantic Ocean since 1980
Lionfish have no natural predators
Lionfish have a fast reproductive rate
What are the three states of matter
Solid, Liquid, and gas
Name one of the states of matter that is separated or all over the place?
Gas
Organisms in the same system will compete for limited food. If there is a reduction in egg cloud availability in the reef ecosystem, which organisms access to food would be least affected?
A. Bacteria
B. Crustaceans
C. Phytoplankton
D. Sharks
Phytoplankton
Based on Figures 1 and 2, what is the first step in the goldfish response to the food being placed in the tank?
Special structures in the eye receive information
What are the three causes that water in the river to cycle through the area in Figure 1?
-The sun
-Gravity
-the plants
Why are the properties of sugar different from ethanol, even though ethanol is created from sugar?
The arrangement of atoms in sugar is different than the arrangement of atoms in ethanol.
Millions of years represent what?
A. Sedimentary rock
B. Fossil Fuels
C. Myth
D. Formation
Fossil Fuels
What measurements should students take to determine the dependent variable?
Hint (Two answers)
Temperature and Time
Based on the information provided, why are lionfish in the Atlantic Ocean a problem that needs to be controlled?
A. Lionfish have a rapid reproductive cycle
b. Lionfish are sought after by seafood restaurants
c. Lionfish have venomous spikes that are hazardous to human divers
d. Lionfish are an invasive species that is disrupting Atlantic Ocean ecosystems.
Lionfish are an invasive species that is disrupting Atlantic Ocean ecosystems.
What type of rocks are formed when there is high pressure and high temperature?
A.Granite
B. Sedimentary
C. Igneous
D. Metamorphic Rock
Metamorphic Rock
When testing how energy us transferred within the solar cooker, the students find that the temperature of the air in the cooker increases more quickly than the temperature of the food in the cooker.
What factors of the matter being measured caused this phenomenon?
Three answers.
A. The state of the matter
B. The mass of the matter
C. The density of the matter
D. The starting temperature of the matter
The state of matter
The mass of the matter
The density of the matter
Which planet is the closest to Earth?
Venus
Where do producers get their energy?
Sun
The students analyze factors that could affect populations of organisms on the reef. Decide how each change affects the population of small fish.
Word Bank: water temperature decreases; large fish produce more egg clouds; water temperature increases; sharks migrate into the area
Sort into these categories:
Increases population. Decreases population
Increases Population: Water temperature increases; large fish produce more egg clouds; sharks migrate into the area
Decreases population: Water temperature decreases
The amount of oxygen in the water around the reef can affect the ecosystem in dramatic ways. Use the data in Figure 3 to complete the sentences.
Word Bank: cycles; remains constant; temperature; volume; 2; 4; 6; 8; lower; higher
The amount of oxygen in the reef ecosystem ________ throughout a year. This happens naturally as the ______ of the water changes. The normal level of dissolved oxygen is around _______mg/L. In late 2009 and late 2015, scientist noticed large numbers of dead fish in the reef ecosystem. This indicates that dissolved oxygen levels ______ than ____mg/L are harmful to many fish.
cycles
temperature
6
lower
2
Complete the sentence...
As the cooker workers, the food particles gain _______. This can be measured by using a ________ to determine the rise in _________.
Kinetic energy
thermometer
temperature
What word means group of organisms that have similar traits?
Species
True or False:
Plants perform photosynthesis and provide energy to the ecosystem.
True
The students observe how much energy and matter moves in the reef ecosystem. What are the primary sources of matter and energy in the web?
Two answer
The sun
The phytoplankton
What is a landforms?
Mountains, valleys, and deserts
When water vapor gets cold, it turns into?
raindrop
Where do decomposers get their energy?
Dead materials
What is the role of a bird in an ecosystem?
Consumer