Science STAAR Review 1

How is a delta formed?
(a)  

• a river carries sediments which get deposited at the ocean
• hurricanes push dirt to the coast
• waves weather rock at the coast
• Sediment gathers as it tries to head upstream

What carved out the Grand Canyon?

This model could demonstrate the formation of what 2 landforms?
(a)  

• canyons / deltas
• canyons / oceans
• plains / dunes
• dunes /deltas

Which two stages are shared by both complete and incomplete metamorphosis?
(a)  

• egg / adult
• pupa / adult
• egg / nymph
• larva / nymph

All of the following adaptations help plants survive in the desert EXCEPT –

• growing tall over many years
• a thick, waxy outer covering
• the ability to store water
• spines to protect from animals

If humans over-hunted a population of insect-eating birds, what change would likely be seen?
(a)  

• Increased populations of insects
• Severe loss of vegetation
• Increased seedling germination
• Migration of small mammals

What change could be expected from the Brown Tree Snake coming to Guam after 1950?

• more lizards
• less lizards
• more birds
• increase in jungle area

What is the original source of energy in a food web?

• producers
• the Sun
• consumers
• decomposers

What season is this picture showing?

What is the most likely time in this picture?
(a)  

• 12:00 pm
• 12:00 am
• 9:00 am
• 4:00 pm