Scientific and Engineering Practices
Living Systems and Ecosystems
Layers of Earth, Rocks, Erosion, and Conservation
Force, Motion, Energy, and Matter
Electricity, Light, and Sound
100
Before the experiment, a scientists will use background knowledge and research to predict the result of the experiment. What is this called?
Hypothesis
100
This gas is produced from photosynthesis.
Oxygen
100
Step-by-step instructions to carry out an experiment are found in the ___________
Procedure
100
Energy ________ be created or destroyed.
cannot
100
The pathway followed by electricity is called
Circuit
200
Whish planet has the second longest year?
Mars
200
As one consumer eats another consumer, what happens to the bigger consumer's energy?
Increases
200
It is possible for an individual to participate in conservation by
Recycling an reusing materials
200
There is ______ energy on the food that we eat.
Chemical energy
200
The toaster converts electrical energy into ________
Thermal Energy
300
What does this device measure?
C. Mass
300
The role of an organism in its community is called
Niche
300
Wind carrying sand hits a giant rock for millions of years. This is an example of ___________.
Weathering
300
Which phase of matter has the least thermal energy?
Solid
300
Which materials are conductors?
plastic, copper, paper, wood, aluminum, rubber, iron, penny
coper, aluminum, iron, penny
400
Which one is an observation or inference?
C. Because I hear thunder, it will likely rain
400
What does an organism's habitat provide?
Food, water, shelter
400
When a pond fills up with sediment.
Deposition
400
What is the error in the table?
60 degrees C is a solid, but 50 degrees is a liquid.
60 degrees C would also be a liquid
400
A fan converts electrical energy into ______
Mechanical energy
500
What do the numbers on the table represent?
Data
500
An area where living and nonliving things interact is called
Ecosystem
500
Oil, coal, and gas are all
Nonrenewable energy
500
When salt is added to water, a ______ forms.
Solution
500
The ________ of a tuning fork produce sound waves.
Vibrations
600
Which statement is an inference and not an observation?
B. the flowers are orange to attract insects
600
In the ocean, the most important living organisms for almost all food chains are
Plankton
600
This causes mountain ranges to form.
The collision of tectonic plates
600
All matter is made of this.
Atoms
600
Sound cannot travel in space, because space is _______________
A vaccum
700
What is the correct order of the scientific method?
E, A, C, D, F,, B
700
A word that means two or more populations living together in the same habitat.
Community
700
Pumice is a rock formed when magma explodes out of a volcano. What kind of rock is pumice?
Igneous
700
What type of energy is needed to melt a popsicle?
Thermal energy
700
The location of objects by reflected sounds is called ___?
Echo location?
800
What is improved through the process of creating, building, and testing devices?
Technology
800
Use the dichotomous key below to identify the unknown flower.
Erysimum marshallii
800
The place where two large plates of the Earth meet.
Fault
800
If you threw a teddy bear in space, it would travel forever because __________
No force acts upon it.
800
The _____ of a sound determines if you hear a high or low sound.
Pitch