7.L.17.3
A population of native bumblebees lives in grassland, consuming pollen from flowers. A local farmer introduces honeybee to the area, which compete for the same food source. Which of the following is the most likely result of this introduction?
Bumblebee population decreases ; flower population increases
Which instrument should a student use to measure the mass of a rock?
A. Graduated cylinder
B. Ruler
C. Thermometer
D. Triple beam balance
what is a triple beam balance
Which layer of the Earth is thickest and makes up most of the planet’s volume?
What is Mantle
A toaster is plugged into an electrical outlet. When it is turned on, the metal coils inside the toaster begin to glow red and heat up.
Which energy transformation is occurring?
A. Chemical → Electrical
B. Electrical → Thermal
C. Thermal → Mechanical
D. Mechanical → Electrical
What is Electrical → Thermal
whats the name of
the study of living things
What is Biology
A severe drought hits a local ecosystem, reducing the amount of water in a small stream. Which type of limiting factor is this?
Density-independent factor
Which of the following is a physical property used to identify a substance, regardless of the amount of the substance?
A. Mass
B. Volume
C. Weight
D. Density
What is density
Which layer of the Earth is composed mainly of solid iron and nickel?
What is Inner core
A student drops a ball from the top of a ramp. As the ball rolls down, it begins to move faster.
Which type of energy increases as the ball moves down the ramp?
A. Thermal energy
B. Chemical energy
C. Kinetic energy
D. Electrical energy
What is Kinetic energy
the study of the origin, history, and structure of Earth
What is Geology
Which of the following is an example of a biotic limiting factor that would impact a population of deer in a Florida forest?
An increase in the population of wolves (predators).
A student finds that a rock has a mass of 50 grams and a volume of 10 mL. What is the density of the rock?
What is 5 g/ml
A student compares continental crust and oceanic crust. Which statement is correct?
A. Oceanic crust is thicker than continental crust
B. Continental crust is denser than oceanic crust
C. Oceanic crust is thinner and denser than continental crust
D. Continental crust is found under all oceans
What is C. Oceanic crust is thinner and denser than continental crust
A flashlight uses batteries to produce light. Which sequence best describes the energy transformations that occur?
A. Electrical → Chemical → Light
B. Light → Electrical → Chemical
C. Chemical → Electrical → Light
D. Chemical → Light → Electrical
What is Chemical → Electrical → Light
the study of matter and energy
what is physics
When a population becomes too dense, which of the following is a density-dependent limiting factor that will slow its growth?
A disease outbreak
A block of wood floats on water, while a rock sinks. Which of the following best explains this observation?
What is the wood has a lower density than the water
Why is the outer core important to life on Earth?
What is it creates earths magnetic field
When a guitar string is plucked, the string vibrates and produces sound.
Which two forms of energy are involved in this process?
A. Chemical and electrical
B. Mechanical and sound
C. Thermal and light
D. Sound and electrical
What is Mechanical and sound
Source of knowledge that is based on experimentation and research
What is scientific knowledge
A new species of plant, the Kudzu vine, is introduced to a local ecosystem and spreads rapidly, covering all other plants and preventing them from getting sunlight. Which limiting factor is the Kudzu vine consuming to outcompete the native plants?
Space
f you cut a solid aluminum block in half, what happens to the density of each piece?
This semi‑molten layer of the upper mantle allows Earth’s rigid lithospheric plates to move, making plate tectonics possible.
What is the asthenosphere?
A solar panel absorbs sunlight and converts it into electrical energy.
What type of energy is being transformed into electrical energy?
A. Thermal energy
B. Sound energy
C. Light energy
D. Mechanical energy
What is Light energy
A scientist who studies fossils to learn about organisms that lived long ago
Paleontologist