Science STAAR Review
Quiz by Jennifer Davis
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- Q 1/17Score 0
A photograph of a litter of six-week-old kittens shows that the kittens are not identical. Even though these puppies have the same parents, they do not alllook alike because —
29each puppy has a different combination of genetic material as a result of sexual reproduction
they were produced by asexual cloning
some of the puppies have genetic material from only one of the parents
all the puppies developed from the same fertilized egg
- Q1
A photograph of a litter of six-week-old kittens shows that the kittens are not identical. Even though these puppies have the same parents, they do not alllook alike because —
each puppy has a different combination of genetic material as a result of sexual reproduction
they were produced by asexual cloning
some of the puppies have genetic material from only one of the parents
all the puppies developed from the same fertilized egg
60s - Q2
Sodium and lithium have similar chemical properties. What characteristic of these elements explains why they are chemically similar?
Their atoms both have more neutrons than protons.
Their atoms have the same number of energy levels.
Their atoms both have one valence electron.
Their atoms contain equal numbers of protons and electrons
60s - Q3
Hikers look at a topographic map of an area named Green Peak.The Green Peak area is made up of only limestone rock. The map is shown. Which location around Green Peak is likely to experience the most erosion over time?
Location X, because location X is near the bottom of a slope
Location W, because location W has the gentlest slope
Location Y, because location Y has the steepest slope
Location Z, because location Z is the flattest slope
60s - Q4
A student was given this partial dichotomous key and asked to determine in which of five orders the adult insect shown belongs. Based on the dichotomous key, in which order does the insect belong?
Diptera
Isoptera
Zoraptera
Ephemeroptera
60s - Q5
The diagram shows a model of an atom. The model contains three different subatomic particles. Particles X and Y are inside the nucleus, and particle Z is outside of the nucleus. Which statements best describe the charges on the particles in this model?
Both particles X and Y have a positive charge. Particle Z has a negative charge.
Both particles X and Y have a negative charge. Particle Z has a positive charge.
Either particle X or particle Y has a positive charge. Particle Z has a negative charge.
Either particle X or particle Y has a negative charge. Particle Z has a positive charge.
60s - Q6
A photograph of a bird perched on a fence post is shown. Which description best identifies the action-reaction pair between the bird and the fence post?
Action: The force of the wires on the fence post Reaction: The force of the fence post on the bird
Action: The force of the bird on the fence post Reaction: The force of the fence post on the bird
Action: The force of the bird on the wires Reaction: The force of the wires on the fence post
Action: The force of the fence post on the bird Reaction: The force of the bird on the wires
60s - Q7
Two students record the distance they each traveled in 60 seconds in the data table shown. If the students continue at the same speed, which statement describes the total distance traveled after 90 seconds?
Student 1 traveled 70 m, and student 2 traveled 25 m.
Student 1 traveled 40 m, and student 2 traveled 20 m.
Student 1 traveled 60 m, and student 2 traveled 30 m.
Student 1 traveled 50 m, and student 2 traveled 30 m.
60s - Q8
A sledgehammer has a mass of 3.5 kilograms. What net force, to the nearest whole newton, will a person need to apply to accelerate the sledgehammer at a rate of 4.0 m/s2?
3.5
14
4
15
60s - Q9
Students collected data on five elements. Their data are shown in the table. Which element has the same number of energy levels as lithium?
Beryllium
Sodium
Magnesium
Potassium
60s - Q10
Maps of predicted weather conditions are shown. Which answer choice best describes the weather at location X on Day 1 and Day 2?
Day 1: cold and rainy
Day 2: clear and sunny
Day 1: clear and cool
Day 2: warm and rainy
Day 1: warm and windy
Day 2: cloudy and cold
Day 1: warm and rainy
Day 2: cool with more rain
60s - Q11
Oxygen and oxygen-containing compounds are involved in many different reactions. Which balanced equation represents a reaction that involves 14 atoms of oxygen?
60s - Q12
A student is building a model of a solar eclipse. Solar eclipses occur only during a new moon phase. Which motion best demonstrates a solar eclipse?
Earth moves between the sun and the moon, casting a shadow of the moon on the sun.
The moon moves between the sun and Earth, casting a shadow of the moon on Earth.
Earth moves between the sun and the moon, casting a shadow of Earth on the moon.
The sun moves between the moon and Earth, casting a shadow of the sun on Earth.
60s - Q13
What function do both cell membranes and cell walls perform?
Producing energy for cellular processes
Synthesizing genetic material
Directing the reproduction of the cell
Allowing water to move into and out of cells
60s - Q14
Which of these observations is an indication that a chemical reaction has occurred?
Steam forms above boiling water
A solid forms when two clear solutions are mixed.
Sugar crystals form on the sides of a boiling pot of sugar water
A solid forms when a clear solution is frozen
60s - Q15
Which statement best explains why the sun appears brighter to people on Earth than any other star?
Sunlight reaches Earth’s atmosphere at an angle that causes the sun’s light rays to intensify.
The sun burns at a higher temperature than any other star
The sun is closer to Earth than any other star.
Unique chemical reactions in the sun’s core produce a high-energy wavelength of light.
60s
