6th Grade End of Year Review

A student lifts a box of cereal to a shelf. How can the student increase the gravitational potential energy of the box?

• by lifting the box more slowly

• by lifting the box to a higher shelf

• by turning the box sideways before lifting it

• by removing cereal from the box before lifting it

Which is an example of a learned behavior?

• a snail digs a hole to lay its eggs

• a whale can swim as soon as it is born

• a peacock spreads its feathers to attract a mate

• a newborn duckling follows the first moving object it sees

Which lists gives levels of classification from broadest to most specific?

• . phylum, kingdom, species, genus

• Kingdom, phylum, genus, species

• Genus, species, kingdom, phylum

• Species, genus, phylum, kingdom

Protists can have flagella, cilia, or pseudopods. Which is one way these structures help protists survive?

• They help them move

• They help them stay drive

• They help them get warm

• They help them make food.

A young sunflower plant faces east in the morning. They turn throughout the day to follow the sun. This motion is an example of ____.

• gravitropism

• hydrotropism

• phototropism

• thigmotropism

How would a plant be affected by its chlorophyll were removed?

• oxygen would build up inside the plant

• The plant would be unable to absorb energy from the sunlight

• Carbon dioxide could no longer enter the leaves of the plant.

• The plant would not be able to transport water from its roots.

In a hydroelectric power plant, falling water turns a turbine in an electric generator. Which energy transformation takes place during this process?

• chemical energy to electrical energy

• electrical energy to chemical energy

• mechanical energy to electrical energy

• electrical energy to mechanical energy

A student is comparing different types of animals. What are two characteristics that are true of all animals?

• They are multicellular

• They breathe with lungs

• They are heterotrophs

• They are endothermic

• They have a backbone.

A student is planning an investigation to learn more about factors that affect climate. Which question is testable?

• What distance does light ravel from the sun to Earth?

• Do people prefer activities that can enjoy in some climates over others?

• How does the angle at which light strike an area affect how warm it gets?

• Will the climates on Earth be different in the distance future, or will they remain the same.

Some plants have taproots, some have fibrous roots, and some have both. What statement describes taproots?

• They form a thick mat near the surface of the soil.

• They take in water and nutrients from deep in the soil.

• They take in water and nutrients from a wide area of soil.

• They are the type of root htat grasses and corn plants have.