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Science 6

6 week assessment

QuestionAnswer
Meter m Length 1,000 m in a km width of a desk
Centimeter cm Length 100 cm in a m length of a finger
Millimeter mm length 10 mm in a cm a penny
Gram g mass 1,000 g in a kg a paperclip
Cubic Centimeter cm3 volume of solids 1 mL = 1 cm3 a cereal box
LIter L volume of liquid 1,000 L in a kL large bottle of pop
Milliliter mL volue of a liquid 1,000 mL in a L grape
What is the definition of graduated cylinder? a scientific tool to measure the volume of liquids
What is the definition of triple-beam balance? a scientific tool to measure mass
What is the definition of density? is the amount of matter that an object has in the space it takes up
What is the definition of volume displacement the process used to find the volume of an irregular solid object, like a rock
What is the density of fresh water? 1.00 g/mL
What is the definition of observation? is the process of obtaining information by using the 5 senses; ex. smelling garbage
What is the definition of inference? is a conclusion reached on the basis of evidence and reasoning; ex. the baby is crying because it is hungry
What is the definition of prediction? what you think will happen next or as a result of your action; ex. If I fall from 50 feet, I will brake something
What is the definition of classification? dividing things in groups by their characteristics; ex. some babies are easy-going, and some are fussy
What is the definition of problem? a question or statement about an observation; ex. Which brand of fertilizer will, make bean plants grow faster?
What is the definition of hypothesis? is a testable idea or explanation that leads to scientific investigation; ex. Miracle-Gro fertilizer will make bean plants grow faster
What is the definition of independent variable? is in an experiment, the factor that is deliberately manipulated; ex. The brand of fertilizer
What is the definition of dependent variable? is in an experiment, the factor that changes as a result of manipulation of one or more factors; ex. the rate or amount of plant growth
What is the definition of control? Part of an experiment without the independent variable. Used for comparison; ex. a bean plant grown without fertilizer
What is the definition of conclusion? a summary of the data you have taken; ex. Meijer brand fertilizer actually made bean plants grow faster.
The Moho(Mohorovicic discontinuity) is located between Earth's crust and the ________. Mantle
Made of iron and nickel, the _______ is located at the center of Earth. Core
Earth's tectonic plates are made out of chunks of the _________, which is made up of the crust and rigid upper mantle. lithosphere
The force of attraction between all objects in the Universe is called_________. gravity
A lake is an example of a _______ system because both matter and energy are exchanged with the surroundings. open
A _________ system is one in which only energy is exchanged with the surroundings. closed
The mostly solid, rocky part of the Earth is called the __________. geosphere
Water evaporating from a lake into the air is an example of the hydrosphere affecting the ___________. atmosphere
According to the ______ law of thermodynamics, energy is neither created nor destroyed. First
The Earth's main internal energy source is _________ _______. This causes heat from the core to move through the mantle by the process of ___________. radioactive decay convection
Earth's main external energy source is the _________. sun
In the nitrogen cycle, atmospheric nitrogen is fixed by __1__ in the soil and roots of plants. The nitrogen compounds are then used by plants to make __2__ Animals eat the __3__ and the proteins are used to make muscle in their bodies.. 1. bacteria 2. proteins 3.plants
Nitrogen is returned to the soil through animal waste or when organisms die and ______. decay
In the carbon cycle, plants take carbon dioxide out of the air through __1__. The carbon is turned into __2__, which are building materials for the plant. 1. photosynthesis 2. carbohydrates
Animals eat the ______ and break down the carbohydrates, which releases some of the carbon back to the atmosphere as CO2. plants
True or False: Humans need nitrogen in the form of amino acids to make proteins. true
Why is Earth considered a closed system? very limited exchange of matter mostly just energy
Which 2 gases make up most of our atmosphere? nitrogen and oxygen
What is an appropriate label for the volume of a liquid, such as a glass of water? mL
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