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Worksheets6th Grade Science Final Review practice
Total questions: 15
Worksheet time: 13mins
A population of birds lives on an island with tall trees and thick bushes. Some birds have short, strong beaks, while others have long, thin beaks. The main food source is seeds hidden deep inside the bushes. Over time, scientists notice that more birds with long, thin beaks survive and have offspring than birds with short, strong beaks.
Long, thin beaks help the birds reach seeds deep in the bushes, so they can eat and survive.
Long, thin beaks make the birds fly faster, so they can escape predators.
Short, strong beaks are too weak to crack seeds, so those birds die out.
Long, thin beaks help the birds build better nests, so they have more babies.
All living things have features that help them survive in their environment, which are called .
(a) For example, the thickness of a cactus' stems help to (b)
San Clemente, a city on the Southern California coast, and Temecula are at about the same latitude. Why does San Clemente usually have milder temperatures year-round compared to Temecula?
A. Inland cities are closer to deserts, which cool down faster at night.
B. The ocean stores heat and releases it slowly, keeping temperatures milder.
C. Coastal cities are shaded by clouds more often than inland cities.
D. The land near the coast heats up faster than the ocean, causing higher temperatures.
Based on the information and the diagram below, how does the California Current influence the climate along the western coast of the United States?
The denser, warm water will sink and cool the air, decreasing evaporation and causing cooler, drier conditions.
The denser, warm water will sink and cool the air, increasing evaporation and causing cooler, wetter conditions.
The less dense, warm water will rise and heat the air, increasing evaporation and causing warmer, wetter conditions.
The cold, dense water cools the air, decreasing evaporation and causing cooler, drier conditions.
What causes a dry climate on one side of a mountain range in the rain shadow effect?
The mountains stop ocean water from moving over the land.
Warm air sinks and causes rain to fall on both sides of the mountain range.
Mountains force moist air up, causing it to cool and rain one side, leaving dry air on the other.
Wind blows only on one side of the mountain.
The following graphs show average temperature data for two locations. Both locations have the same elevation. Use the text dropdown to select the location that makes the statement true.
Location A is farther from the equator than location B
Location A is closer to the equator than location B
Location B is located farther inland that location A
Location A is in the norther hemishpere, and location B is in the southern hemisphere
Jayden is studying a model of Hadley convection cells. He understands that they cover the Northern and Southern hemispheres. Based on evidence in the model, what MOST LIKELY causes Hadley convection cells to form?
Warm air rises from the Earth, heading toward the poles, where it cools and returns south.
Warm air sinks from Earth, heading toward the poles, where it cools and returns south.
Sunlight hits the equator, warming the air, which rises and travels toward the poles, where it cools and returns to the equator.
Sunlight hits the equator, warming the air, which sinks and travels toward the poles, where it cools and returns to the equator.
A group of scientists developed a computerized climate model to show how natural forces and human effects separately contributed to the trends in global temperatures between 1900 and 2000. The black dotted line shows observed temperatures.
Temperatures changed, primarily due to natural forces.
Temperatures changed, primarily due to human forces.
Temperatures remained stable, primarily due to human forces.
Temperatures remained stable, primarily due to natural forces.
Which statement is true about dominant and recessive alleles?
Dominant alleles mask out (cover up) recessive alleles.
Recessive alleles mask out (cover up) dominant alleles.
Dominant alleles and recessive alleles cancel each other out.
Dominant alleles and recessive alleles both show up as traits equally.
With this Punnett square for pea plants, a) (a) of the offspring will be tall and b) (b) will be short.
Tall
Short
Homozygous
Heterozygous
The alien shown below reproduces asexually. Which alien could be her offspring? Click the alien below that is the offspring of the parent.
First alien on the left
Second alien from the left
Third alien from the left
Fourth alien from the left
A human mother is shown below. Which trait is her daughter most likely to inherit?
Pierced ears
Blue eyes
Red lips (from lipstick)
Dyed-purple hair
Which of the following best describes how Samuel can change the model to represent a different allele of the same gene?
He can choose to make cookies instead of a pound cake.
He can use vanilla flavoring instead of almond flavoring in the pound cake.
He can choose not to make the cake.
He can choose to follow the steps he used to make the cake in a different color.
Ocean current bring warm water from the equator towards (a) , helping to regulate the planet's climat by distributing heat more evenly
Pound Cake Recipe
A teacher asks his middle school class to think of a model that they can use to represent how genes are used to instruct a cell
to make proteins. Samuel decides to use a recipe. Samuel brings the recipe for pound cake from home (shown below). He is
asked to explain the model in class.
Pick the right options in the dropdown below.
Samuel explains to the class that in his model, the pound cake recipe represents a (a) represents a (b)
Which of the following best describes how Samuel can change the model to respresent a different allele of the same
gene?
He can choose to make cookies instead of a pound cake.
He can use vanilla flavoring instead of almond flavoring in the pound cake.
He can choose not to make the cake
He can choose to follow the steps he used to make the cake in a different color.
