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Worksheets5th Grade Science STAAR Review 8
Total questions: 28
Worksheet time: 55mins
Which of the following characteristics could be placed in the center part of the diagram?
What makes food in a plant cell?
chloroplast
cytoplasm
nucleus
mitochondria
Grasslands have very few trees while forests have many trees. Why is this statement true?
Grasslands receive less rain than forests.
Grasslands receive less sunlight than the forests.
The animals of the grasslands eat small trees before they can grow.
Which best explains the adaptations needed for organisms living in an estuary ecosystem?
Organisms must be adapted to live in salt water.
Organisms must be adapted to live in fresh water.
Organisms must be adapted to live in both fresh water and salt water.
Which part of a pond ecosystem gives small fish shelter?
rocks
water
frogs
soil
Which two ecosystems are terrestrial?
ponds and lakes
forests and estuaries
oceans and grasslands
forests and grasslands
Which statement best describes producers?
Producers in water ecosystems are mainly algae.
Producers in land ecosystems are mainly grasses.
Producers in both water and land ecosystems are mainly trees.
Producers in both water and land ecosystems are mainly green plants.
A pond has become overgrown with algae. The fish and plants in the pond are beginning to die. Which human activity would most likely be responsible for the decrease in pond life?
people throwing garbage near a road
farmers using excess fertilizers on crops
logging companies cutting trees in forests
factories producing smoke that pollutes the air
A rabbit eats a variety of plants in an ecosystem. Which best describes the effect a drought would have on both rabbits and plants in an ecosystem?
Both populations would increase.
Both populations would decrease.
Plant life would decrease and the rabbit population would increase.
In a grassland ecosystem, lions prey on wildebeest. The population of lions has declined steadily because of illegal hunting. What will most likely happen to the population of wildebeest?
The wildebeest population will increase.
The wildebeest population will decrease.
The wildebeest population will remain the same.
Which is most likely responsible for the pollutants that enter a wetland ecosystem after a heavy rain?
animal waste
human chemical use
atmospheric conditions
changes in daily temperatures
