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WorksheetsScience STAAR Review 1
Total questions: 15
Worksheet time: 8mins
Name
Class
Date
1.
An atom of a certain element has 36 protons, 36 electrons, and a mass number of 84. At room temperature this element is a very stable gas. How many neutrons are in this atom?
a)
48
b)
36
c)
84
d)
120
2.
What types of particles are found in the cloud surrounding the atom's nucleus?
a)
Positively charged particles and negatively charged particles.
b)
Negatively charged particles only
c)
Neutral particles and positively charged particles
d)
Positively charged particles only
3.
A student draws the odel shown. Which of these best compares the conditions at Location X and Location Y?
a)
It is day at Location X and night at Location Y.
b)
It is winter at Location X and summer at Location Y.
c)
There are more hours of daylight at Location X than at Location Y.
d)
The moon is brighter when viewed from Location X than when viewed from Location Y.
4.
The weather map shows the weather conditions for one day across the United States. Based on the weather map, which city will most likely experience decreasing temperatures during the next 24 hours?
a)
Denver, because it is raining there.
b)
Minneapolis, because a cold front is approaching
c)
Atlanta, because a warm front is approaching
d)
Houston, because it is in a high pressure area.
5.
The image shows a plate boundary. Arrows have been added to indicate the movement of the plates.
What plate boundary feature is shown?
What plate boundary feature is shown?
a)
A ridge formed by an inactive convergent boundary
b)
A valley forming at an active divergent boundary.
c)
A fault forming at an active transform boundary
d)
A volcano formed by an active transform boundary
6.
Coal contains carbon and other elements. Carbon dioxide forms when coal burns in the presence of oxygen. Which of these is the best evidence that a chemical reaction occurs when coal burns?
a)
The shape of the coal changes.
b)
Oxygen is present.
c)
A new substance is produced.
d)
Coal is made up of more than one element.
7.
A bus travels 20 km in 30 minutes. What is the average speed of the bus?
a)
20 km/hr
b)
30 km/hr
c)
40 km/hr
d)
50 km/hr
8.
Aluminum, sulfur, and chlorine are all elements found on the periodic table. Tests involving these three elements would show that at normal room temperature ---
a)
Sulfur is malleable and aluminum conducts electricity
b)
Chlorine is malleable and conducts electricity
c)
Aluminum is malleable and conducts electricity
d)
all three elements are malleable and conduct electricity
9.
When a lion eats a zebra and then uses the energy from the zebra to run, the lion's body converts --
a)
chemical energy to mechanical energy
b)
electrical energy to chemical energy
c)
chemical energy to light energy
d)
mechanical energy to chemical energy
10.
Based on its chemical formula, which of the following substances is an organic compound? (HINT: this was on a recent homework SPONCH)
a)
Urea, CH4N2O
b)
Ammonium sulfide, (NH4)2S
c)
Silane, SiH4
d)
Sodium Chloride, NaCl
11.
When people run long distances, their muscles require increased amounts of oxygen. Which system is responsible for carrying this oxygen to the muscles?
a)
Nervous
b)
Respiratory
c)
Digestive
d)
Circulatory
12.
Certain species of whiptail lizards have only female individuals and no males. These lizards reproduce asexually. What is one advantage of asexual reproduction for these lizards?
a)
A new population can be established by a single individual in a relatively short period of time.
b)
All members of a population are genetically very similar and less able to survive environmental changes.
c)
They are smaller than lizards that reproduce sexually.
d)
They are more likely to develop a variety of tail lengths.
13.
Three cousins have a similar appearance but different face shapes. Which of these cell components are most involved in determining the basic shape of each girl's face?
a)
Genes, chromosomes, and nucleus
b)
Cytoplasm, chloroplasts, and genes
c)
Vacuoles, nucleus, and chromosomes
d)
Chromosomes, chloroplasts and vacuoles
14.
Which of the following best describes the velocity of an object?
a)
30 m/s
b)
30 m east
c)
30 m/s east
d)
30 m/s2
15.
Scientists recently discovered that rocks collected from the Franklin Mountains in West Texas and rocks collected from mountains in eastern Antarctica were exactly the same age. Further research showed that the rocks where chemically and geologically the same and came from the same magma source. This discovery provides evidence of --
a)
coastal erosion
b)
plate tectonics
c)
ocean currents
d)
glacial melting
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