Space
How many planets are in the solar system?
8 (Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune)
What is the formula to calculate average speed?
Distance over time.
Two examples of parasitism.
Tics, fleas, etc...
Silicon (Si) is a semiconductor because it is a...?
Metaloid
What does the symbol K represent on the periodic table?
Potassium
Day and night are caused by...?
The Earth rotates on its axis.
What are two Physical Changes?
Mixing a salad, cutting paper, etc...
Shape of plant cells?
Rectangular
Where do earthquakes mostly occur?
The edges of the Tectonic Plates.
What elements are on the left side of the periodic table?
Metals...
The ultimate energy is...?
The sun.
What are two examples of Chemical Changes?
Baking something, changing something's color, etc...
Shape of animal cells?
Squishy and irregular
The process in which individuals that are better adapted to their environment are more likely to survive and reproduce than other members of the same species is called __________ selection.
Natural
What elements are on the right side of the periodic table?
Nonmetals
What galaxy is our solar system in?
The Milky Way.
All changes of matter are....?
Physical Changes
Sexual reproduction requires ______ parents and asexual reproduction requires ______ parents.
What is the role of decomposers in the ecosystem?
To get rid of decaying matter and return the energy to the soil.
What elements are along the staircase of the periodic table?
Metaloids
What causes the Earth to have seasons?
The revolution of the Earth on its tilted axis around the sun.
What is its average speed if a car travels 175 kilometers in 3 hours? (may use calculator, round to the nearest whole number)
58 km/hour
Selective breeding is used to help develop many types of plants and animals with _____ traits chosen by humans.
Specific
What structure is in plant cells but not in animal cells?
Cell wall and chloroplasts
What is the chemical symbol for water?
H2O