Physical properties vocab
landforms vocab
light
experimental design
Earth and space
biology
natural resources
circuits
100
Solid, liquid, and gas are all considered what
States of matter
100
these hills of sand, otherwise know as sand dunes are formed by what force
wind
100
light moves in a
straight line
100
the thing that you as the scientist change in an experiment
independent variable
100
This system includes the continuous movement of water between Earth’s surface and the atmosphere through processes like evaporation and precipitation.
Water Cycle
100
In a forest food chain, grass is eaten by deer, and deer are eaten by wolves. If the deer population decreases, the wolves will have less food.
What is a possible effect of a decrease in the deer population on wolves?
The wolf population would likely decrease because they have less food.
100
Answer:
These are materials found in nature that people use for energy, food, water, and shelter.
Correct Response (Question):
What are natural resources?
100
A student builds a circuit with one battery, one light bulb, and wires in a single loop. The bulb lights up.
simple circuit
200
the ability of one item to dissolve or not dissolve in water is
Solubility
200
This force forms canyons, deltas, and v-shaped valleys
water
200
the different _________ allow for different colors of light to be seen, they also allow for things like x-rays to be possible
wavelengths
200
The things that happen as a result of the independent variable changing
dependent variable
200
In the water cycle, this process occurs when liquid water is heated by the Sun and changes into water vapor.
Evaporation
200
A cactus has thick stems that store water and sharp spines instead of leaves.
What is the purpose of these structures?
To store water and protect the plant while reducing water loss in a desert environment.
200
Wind and sunlight are examples of renewable resources, while coal and oil are examples of this type of resource.
What are nonrenewable resources?
200
In one circuit, the light bulb does not turn on because the switch is open.
open circuit
300
How many molecules packed in a given amount of space, you can determine this by putting the item in water
density
300
This forms u-shaped valleys
glaciers
300
When light travels through a lens (piece of clear glass) or water it is _________
Refracted
300
The things in the experiment that never change and always stay the same
controlled variables
300
A student notices that the Moon looks different each night over a month. These changes happen because we see different portions of the Moon’s lit half as it orbits Earth.
The Moon’s position as it orbits Earth causes us to see different amounts of its illuminated side.
300
A plant growing in shade develops larger leaves than a plant growing in bright sunlight.
Correct Response (Question):
Why does the plant in shade grow larger leaves?
To absorb more sunlight for photosynthesis.
300
Fossil fuels form from the remains of plants and animals that were buried under layers of rock and sediment over millions of years.
How are fossil fuels formed?
300
A circuit has one battery and two light bulbs on separate paths. If one bulb goes out, the other stays on.
parallel circuit
400
a mixture of gravel, sand, and a mystery dust is put under a magnet, the mystery dust sticks to the magnet. What does the mystery dust most likely contain and what property does it have
iron, magnetism
400
ice goes into a rock and freezes the rock then splits apart. This is an example of
weathering
400
A painter is standing in front of a lake sees the image of a mountain nearby on the lake what is represented by this image?
Reflection
400
A student is testing how the type of soil affects plant growth. She uses sandy soil for one plant and clay soil for another. However, she accidentally gives the sandy soil plant more water than the clay soil plant.
What is a flaw in this experiment that could affect the results?
The amount of water was not kept the same (a controlled variable was changed), making the test unfair.
400
When water falls to Earth as rain, snow, sleet, or hail, it is part of this stage of the water cycle.
Precipitation
400
In a pond ecosystem, algae use sunlight to make their own food and provide energy for small fish.
What role do algae play in this ecosystem?
Algae are producers because they make their own food using sunlight.
400
These are formed from burial of marine organisms
what are oil and natural gas
400
This is needed for electrical energy to travel
a conductor
500
This slows down or stops the flow of electrical or thermal energy
insulator
500
Sand dunes, canyons, and oxbow lakes are all examples of landforms made by
erosion
500
What property of light is shown in this image?
Absorption
500
A group of students tests how the length of a ramp affects how fast a toy car travels. They measure the time it takes the car to reach the bottom using ramps of different lengths. They repeat each trial three times and average the results.
Why do the students repeat the experiment multiple times and average the results?
To improve accuracy and make the results more reliable.
500
A student observes that certain areas near the equator receive more direct sunlight year-round, while others receive differing amounts, affecting temperature and weather patterns. This is due to Earth’s shape and its interaction with this energy source.
What are seasons
500
In a grassland ecosystem, rabbits eat grass and are eaten by foxes. A disease causes the rabbit population to decrease sharply.
What are two possible effects this change could have on the ecosystem?
- Grass population may increase because fewer rabbits are eating it.
- Fox population may decrease because they have less food.
500
Burning fossil fuels releases gases into the air that can cause pollution and contribute to climate change.
What is one negative effect of using fossil fuels?
500
items such as wood, rubber, and a resistor act as __________
insulators
600
a combination of two or more substances that is easily separated
Mixture
600
List and explain the processes needed to form sedimentary rock
deposition - deposits the sediment
compaction - squeezes the particle together
cementation - glues and hardens layers with minerals dissolved in water
600
When light hits a lens or water what happens?
light is bent at a different angle otherwise known as refraction.
600
A student designs an experiment to test how the amount of fertilizer affects plant height. She uses three plants, each given a different amount of fertilizer. She measures the height after two weeks and records the data.
What additional step would improve the validity of this experiment?
- Use more plants in each group (larger sample size)
- Repeat the experiment
- Keep all other variables the same (light, water, soil, etc.)
- Test over a longer period of time
600
A student is studying how water moves over land after heavy rainfall. Some water soaks into the ground, while some flows across the surface into rivers and lakes. This movement across the land is called this process.
Runoff
600
Two populations of the same type of bird live in different environments. One lives in a cold, snowy region with thick feathers, and the other lives in a warm desert region with thin feathers. A sudden climate change makes both environments much colder over time.
Which population is more likely to survive, and what evidence supports your answer?
The birds with thick feathers are more likely to survive because their adaptation helps them stay warm in cold temperatures, while thin feathers would not protect against the cold.
600
A city is deciding whether to build a coal power plant or a wind farm to produce energy for the future.
Which choice is more sustainable and why?
The wind farm is more sustainable because it is a renewable resource and does not run out or cause as much pollution.
600
All electrical energy flows from ________ to _________
Positive to negative