6th Grade
7th Grade
8th Grade
Random
100
What are all living things made of?
Cells
100
What type of reproduction leads to different offspring?
Sexual reproduction
100
What is a force?
A push or pull that changes an objects velocity.
100
What are the 3 states of matter?
Solid, liquid, gas
200
Which rock layer is the oldest? Which rock layer is the youngest?
Oldest = layer Z
Youngest = layer V
200
What does the circulatory system do?
It delivers oxygen and nutrients to cells and takes away waste.
200
If a skater is applying 50N of force to a wall, according to Newton's 3rd law, how much force is the wall applying back?
50N
200
If the rabbit population decreased, how would that affect the food web?
The wolves would decrease and the other populations would increase.
300
What is the difference between abiotic and biotic factors?
Abiotic are nonliving and biotic are living.
300
What is a sign of a chemical reaction?
Color change, gas produced, change in temperature, formation of a precipitate, light being produced
300
What is the law of conservation of energy?
Energy cannot be created or destroyed.
300
What type of rock is formed during weathering and erosion?
Sedimentary rock
400
What are the parts of the water cycle?
Evaporation, condensation, precipitation, run-off
400
What do plants need for photosynthesis?
Water, sunlight, and carbon dioxide
400
The roller coaster car has 100J of potential energy and 0J of kinetic energy at point A.
How much kinetic energy will the roller coaster car have at point B?
About 90J of kinetic energy because some energy is lost to friction (thermal energy).
400
What process creates oxygen?
Cellular respiration
500
How are sedimentary rocks different from igneous rocks?
Sedimentary rocks are formed by sediment being compacted into layers while igneous rocks are formed when lava cools.
500
How do fossil fuels affect global warming?
Burning fossil fuels adds to the greenhouse effect which increases the temperature, warming Earth.
500
What pieces of evidence support the theory of a common ancestor?
Homologous structures in animals and similarities among embryos of different species.
500
Is mass conserved?
No, the number of atoms on either side of the chemical equation is not equal.