6th Grade
What are the four major systems/spheres of Earth?
Atmosphere, biosphere, hydrosphere, and lithosphere.
The transfer of thermal energy due to the collision of particles (direct contact)
Conduction
Identify three safety rules that help prevent accidents in the lab.
Answers may vary.
Describe why Earth has seasons.
Earth has seasons because of the (23.5°) tilt of its axis of rotation.
What is an astronomical unit? Why is this unit used to measure distances in the solar system?
This unit is used to measure distances within our solar system because it provides a convenient way to express and compare the vast distances between celestial objects.
What makes up the Universe?
The Universe contains all of the star systems, galaxies, gas, and dust, plus all the matter and energy that exists now.
What are the different states of matter in order based on their density? Lowest to Highest
Gas, Liquid, Solid
What is the difference between potential and kinetic energy?
Potential energy is about position or condition, while kinetic energy is about motion
Ticks attach firmly to the skin of other animals to draw blood is an example of what type of symbiotic relationship?
Parasitism
What is the goal of science?
The goal of science is to understand how and why things happen.
Out of infrared, visible, and ultraviolet bands of light, which has the highest frequencies?
UV Light
What is the difference between the geocentric vs heliocentric models of the solar system?
Geocentric= earth centered
Heliocentric= sun centered
What kinds of fusion occur in the central core?
Nuclear Fusion
List three examples of physical properties.
Examples of physical properties of matter include melting point, color, hardness, state of matter, odor, and boiling point.
What is the difference between weather and climate?
Weather is the atmospheric condition at a certain place and certain time for a short period of time. Climate is the long-term, average, weather condition that occurs in a specific region.
Igneous rock is formed from
cooled magma or lava
List the steps of the scientific method.
Ask a question, do background research, construct a hypothesis, test the hypothesis by doing an experiment, analyze the data and draw a conclusion, and report the results
Describe the relationship between the wavelength and frequency of electromagnetic waves.
Electromagnetic waves with shorter wavelengths have higher frequencies and more energy.
What is the hottest planet and why?
Venus, it has the densest atmosphere
What does the photosphere emit?
Light
What is the density formula?
D=m/v
What is homeostasis?
Homeostasis is the ability of the body to maintain a stable internal environment despite a changing external environment.
The sun is shining on a plant. The leaves of the plant are green. Why?
All colors are absorbed; green is reflected
How does a scientific law differ from a scientific theory?
Laws describe patterns in nature, while theories explain the reasons behind those patterns.
Describe how the Sun, Moon, and Earth are aligned during a full moon.
Sun, Earth, Moon
Name the planets in order from closest to farthest from the sun.
Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune.
Where do most stars fall on the Hertzsprung-Russel diagram? Why?
Most stars fall along the main sequence curve. Stars in the main sequence fuse hydrogen into helium in the core.
What are the two chemical properties of matter?
Reactivity and flammability
What is meant by binomial nomenclature?
Each organism receives a two-part name in which the first word is the genus (a group of species), and the second word refers to one species in that genus for classification.
What is the Law of Superposition?
A sedimentary rock layer in its original position is older than the layers above it and younger than the layers below it.
What is the difference between accuracy and precision?
Accuracy means making measurements that are close to the true value. Precision means making measurements that are close in value to each other but not necessarily close to the true value.
What is the difference between a spring and neap tide?
When the Sun's and Moon's tides match, there are spring tides. When the two tides are opposed, there are neap tides.
What does The Law of Universal Gravitation state?
The force due to gravity between two objects is dependent on the masses of the objects-the more massive the object, the more gravitational pull
How are solar prominences related to sunspots?
Solar prominences are the plasma loops that connect two sunspots.
What are the five indicators of a chemical reaction?
Color Change, Temperature Change, Gas Production, Formation of a Precipitate, Change in Odor