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WorksheetsCren El STAAR Science Review #2
Total questions: 24
Worksheet time: 50mins
Name
Class
Date
1.
Each school year for 30 years, the amount of rain that fell at a school was measured and recorded. Tracking rainfall over a long period provides the most information about which characteristic of an area?
a)
Climate
b)
Temperature of one day
c)
Weather
d)
Type of Soil
2.
Animals and plants use substances that cycle through the environment. Which substance is needed by plants to survive and is released into the environment by animals?
a)
Oxygen
b)
Sugar
c)
Salt
d)
Carbon Dioxide
3.
When a powdered drink mix was added to water, the liquid turned orange. A student decided the taste was too strong, so he poured out half of the liquid and added more water. Which of the following most likely occurred when more water was added?
a)
The physical state changed
b)
The orange color became lighter
c)
The liquid had a sweeter taste
d)
None of the above
4.
All of these are related to the formation of oil or natural gas EXCEPT--
a)
decomposed animals
b)
decayed plants
c)
sedimentary rocks
d)
active volcanoes
5.
A prickly pear cactus is shown. The roots of the prickly pear cactus spread out in a wide underground network. How does this type of root system benefit a prickly pear cactus?
a)
By producing fruit and storing water
b)
By capturing sunlight and getting rid of wast materials
c)
By absorbing water and supporting the plant in loose, sandy soil
d)
By releasing nutrients into the sandy soil and taking in oxygen
6.
A teacher wears protective gloves to lift a metal pan filled with boiling water from a hot plate. Why are the protective gloves necessary?
a)
The metal pan creates thermal energy
b)
The metal pan insulates thermal energy
c)
The metal pan conducts thermal energy
d)
The metal pan reduces thermal energy
7.
A student hiking in a rocky are on a mountain notices that wide, deep cracks have formed in some of the large rocks. Some of the cracks are so large that the rocks have broken apart. Which process most likely caused these rocks to crack and break.
a)
Erosion by wind
b)
Water freezing and thawing
c)
Erosion by fast-moving water
d)
Sediment being deposited
8.
Prairie dogs eat plants and dig underground tunnels. Prairie dog tunnels help break up hard prairie soils, and the animals' waste adds nutrients to the soil. In the past, large groups or prairie dogs lived in many parts of the U.S. Great Plains, but people have destroyed most of these colonies. Which of these will most likely happen when prairie dogs are removed from an area?
a)
The population of predators that eat prairie dogs will decrease
b)
The population of plants that prairie dogs eat will decrease
c)
The nutrients in the soil will increase
d)
The number of underground tunnels will increase
9.
In a food chain, energy does NOT flow directly from---
a)
producer to decomposer
b)
producer to consumer
c)
consumer to decomposer
d)
consumer to producer
10.
A student made a mixture using equal amounts of salt and pepper. The salt grains were the same as the pepper grains. What should the student do to most easily separate the pepper from the salt?
a)
Use a pair of tweezers to remove each grain of pepper
b)
Run a small magnet through the mixture to attract the pepper
c)
Put the mixture in water and filter the pepper out of the water
d)
Use a strainer with a fine wire screen to remove the pepper
11.
One of the brightest objects in the night sky is a planet that is closer to the sun than Earth is. What is the name of this planet?
a)
Mars
b)
Saturn
c)
Jupiter
d)
Venus
12.
Wild Texas hogs, similar to the one shown, are descended from hogs brought here from other countries. These wild hogs eat many different kinds of food, including plants, fungi, and insects. Besides being very destructive to the habitats of other animals, how do wild hogs most likely harm other animals?
a)
By competing with other animals for food
b)
By moving slower than most other animals
c)
By causing other animals to reproduce more
d)
By eating foods that no other animals eat
13.
Which of these is learned behavior of a dog?
a)
Begging for food
b)
Drinking water
c)
Panting on a hot day
d)
Chewing on a bone
14.
What physical property of matter can be measured using the triple beam balance?
a)
length
b)
height
c)
volume
d)
mass
15.
The Smiths notice a bird flying into a window. The bird flies into the window because light -
a)
travels through the window
b)
reflects from the window
c)
refracts around the window
d)
absorbs into the window
16.
What is an abiotic element in the rainforest?
a)
water
b)
tree
c)
frog
d)
monkey
17.
What is the order of the planets from the sun?
a)
Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune
b)
Earth, Saturn, Mars, Mercury, Jupiter, Uranus, Neptune
c)
Mars, Venus, Earth, Mercury, Jupiter, Saturn, Uranus, Neptune
d)
Mercury, Venus, Earth, Saturn, Neptune, Jupiter, Uranus, Mars
18.
Which of these materials would not be a good insulator?
a)
metal
b)
plastic
c)
glass
d)
wood
19.
Which of the following is the most likely food source for a carnivore?
a)
A plant
b)
The sun
c)
An animal
d)
A dead tree
20.
Which of the following would not be safe to do in the science lab?
a)
Leaving a water spill on the floor
b)
Following lab rules
c)
Reading the lab procedure before you begin
d)
Leaving on your goggles until all materials have been gathered.
21.
What is a natural object that revolves around the
Earth?
a)
Moon
b)
Asteroids
c)
Comets
d)
Meteors
22.
Which of the following would cause FREEZING
a)
Heat being added to a solid
b)
Heat being taken away from a liquid
c)
Heat being added to a liquid
d)
Heat being taken away from a gas
23.
Several students investigate the characteristics of soil. The students observe samples of common soils. In one sample they observe that water drains through the soil easily. When they rub the soil between their fingers, it feels rough and scratch, and its particles feel hard. The soil the students observed is most likely----
a)
Sand
b)
Clay
c)
Silt
d)
Loam
24.
A teacher is setting up the terrarium shown in a science classroom. Which of these organisms is best suited for the terrarium?
a)
Blue Jay
b)
Lobster
c)
Snail
d)
Water lily
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