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MS Science TAKS review for 8 th grade Student copy. Science Curriculum & Instruction Spring ISD.
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MS Science TAKS review for 8th grade Student copy Science Curriculum & Instruction Spring ISD
You have a glass beaker filled with a mixture of hot chemicals. The beaker and mixture have a mass of 247 grams. If you want to know the mass of the chemicals only, what should you have done first? • Pour the chemicals directly on a spring scale. • Find a very light container that can hold the chemicals. • Obtain the mass of an empty glass beaker of the same size. • Separate the chemicals into their individual components. TAKS 1 TEKS 6.4A, 7.4A, 8.4A
A student made 3 stacks of books. She leaned identical boards on each stack. She covered one board with waxed paper, one with sandpaper, & one with cloth. She placed a toy car at the top of one board, released it and let it roll until it stopped. She measured the distance the car traveled. She repeated the procedure for the other two boards. What is the independent variable in this investigation? F. The distance the car rolled. G. The height from which the car was released. H. The number of books used. J. The surface of the board. TAKS 1 TEKS 8.2A
Which of the following is a safe way to conserve resources in the lab? • Clean up all equipment at the same time. • Use older, slightly damaged equipment. • Carefully measure chemicals. • Clean up chemical spills quickly. TAKS 1 TEKS 8.1B
What is the average speed in m/s of the 4 trials of the toy car the travels down the ramp? F. 6 G. 7 H. 8 J. 9 TAKS 1 TEKS 8.2B
Which of the following conclusions can be drawn from the information shown? • Most types of matter heat up at the same rate. • Most types of matter cool down at the same rate. • It takes less energy to heat 1 g of silver then 1 g of gold. • It takes more energy to heat 1 g of water then 1 g of copper. TAKS 1 TEKS 6.2D, 7.2D,8.2D
At the grocery store, a student looks at a label on a box of oatmeal. The advertisement he saw on TV said that by eating this brand of oatmeal every morning you would lose weight. Are the advertisement’s claims reliable? F. No, no advertisement ever makes reliable claims. G. No, you must diet and exercise to decrease body weight. H. Yes, advertisements that are on TV and labeled on the box are always truthful. J. Yes, eating oatmeal makes people lose weight. TAKS 1 TEKS 8.3B
The graph shows the average number of days of sunny weather that Spring, Texas has each month for the last 10 years. If the trend continues next year, which month will Spring have the least amount of sunny days? • December • January • July • September TAKS 1 TEKS 8.4B
A student hears a scientist on the news the says he thinks there is life on another planet. What is the most important question that the student should ask in order to critique what the scientist is saying? F. Does the scientist think there is life in other galaxies too? G. What evidence is the scientist basing his statement on? H. Where did the scientist study and go to school? J. Who works for the scientist and helps in his research? TAKS 1 TEKS 8.3A
Which of the following scientists was first to suggest that Earth and the other planets in the solar system revolve around the sun? • Isaac Newton • Marie Curie • Nicolas Copernicus • Galileo TAKS 1 TEKS 8.3C, 8.13A
Which of the following questions about frogs could be answered through a scientific investigation? F. Are frogs able to play musical instruments? G. Are some frog species happier than other frog species? H. How do the diets of different frog species differ? J. What kind of dreams do frogs have? TAKS 1 TEKS 6.2A, 7.2A, 8.2A
The magnification of the eyepiece on a compound microscope is 10X. The magnification of the objective lens of 100X. What is the total magnification? • 10X • 90X • 110X • 1,000X TAKS 1 TEKS 6.4A, 7.4A, 8.4A
Which of the following objects would make the best model of a blood vessel? F. A steel pipe G. A rubber tube H. A cotton string J. An electrical wire TAKS 1 TEKS 8.3C
The graph show world population growth over the last 200 years. If the trend continues the world population will – • decrease • increase, then decrease • Increase • stay the same TAKS 1 TEKS 8.2C
A student is planning an investigation about plants. She says, “Plants grow better in sunlight.” This statement is an example of – F. data G. a hypothesis H. an investigation J. a procedure TAKS 1 TEKS 6.2A, 7.2A, 8.2A
You have a bag of cookies that says it contains 34 grams. Which tool would you use to check to be sure that the bag actually contains 34 grams? • Graduated cylinder • Meter stick • Triple beam balance • Spring scale TAKS 1 TEKS 6.4A, 7.4A, 8.4A
Which would be an important piece of safety equipment to use when heating a substance in science lab? F H J G TAKS 1 TEKS 8.1A
Nitrogen fertilizer is often added to soil to increase the growth of grass in lawns. Which of these nearby ecosystems would most likely be harmed by the use of nitrogen fertilizer? • Forest • Meadow • Park • Pond TAKS 2 TEKS 8.12C
Which type of diagram provides the most information about the feeding relationship among organisms in an ecosystem? F. Food chain G. Food web H. Energy chain J. Energy pyramid TAKS 2 TEKS 8.6C
The diagram shows the natural pattern of an ecosystem changing over time. This is known as – • mutualism • photosynthesis • predation • succession TAKS 2 TEKS 7.12D
What is one way that plant and animal cells are different? F. Plant cells do not have cell membranes. G. Only animal cells contain cytoplasm. H. Only plant cells contain a nucleus. J. Only plant cells have cell walls. TAKS 2 TEKS 6.10B
Which biome is found around Earth’s North and south Poles? • Deciduous forest • Tropical Rainforest • Taiga • Tundra TAKS 2 TEKS 7.12C
Nerves are made of tissue, so nerves are made of – F. cells G. organs H. organ systems J. organisms TAKS 2 TEKS 6.10C
Organisms found living in a tundra would be adapted to live in – • low altitudes • cold conditions • sunny conditions • wet areas TAKS 2 TEKS 7.12C
What occurs during photosynthesis? F. Biomass is converted into chemical energy. G. Heat energy is converted into biomass. H. Chemical energy is transferred into heat energy. J. Solar energy is transferred into chemical energy. TAKS 2 TEKS 7.8B
When an organism dies, chemical energy is still stored in its body’s tissues. Energy is released from the body through the process of – • decomposition • differentiation • osmosis • photosynthesis TAKS 2 TEKS 6.8B
B B b b The Punnett square shows the genotype of two mice. B represents the allele for brown hair. The allele of white hair is represented by b. What are the possible genotypes of the mice’s offspring? F. BB only G. Bb only H. BB and bb J. BB, bb and Bb TAKS 2 TEKS 7.10C, 8.11C
When a baby kangaroo is born, the first thing is does is crawl into its mother’s pouch. What type of behavior is the baby kangaroo exhibiting? • Innate behavior • Learned behavior • Emotional behavior • Both innate and learned behavior TAKS 2 TEKS 8.11B
How does the respiratory system interact with the muscular system? F. The muscular system produces blood which is needed by the lungs to work. G. The muscular system makes mucus for the trachea. H. The respiratory system provides the oxygen needed by the muscles to work. J. The respiratory system causes the muscles to movement. TAKS 2 TEKS 8.6A
The circulatory system carries oxygen and nutrients to every cell in an animals body. Which part of the system is needed to carry the oxygen out to the rest of the body? • Arteries • Heart • Lungs • Veins TAKS 2 TEKS 6.5B
The skull is part of the skeletal system in an animal. One of the functions of the skeletal system is to protect soft body parts. The skull’s structure helps to perform this function because the skull – F. has marrow, which produce blood cells G. has sharp teeth, which the animal uses to eat H. is flexible, which allows the brain to continue growing. J. is hard, which protects the brain from being injured. TAKS 2 TEKS 6.5B
What is taken in by a plant as part of photosynthesis? • Carbon dioxide • Chemical energy • Oxygen • Sulfur TAKS 2 TEKS 8.6B
Grams of water Predict how many grams of water the atmosphere could hold at 500 C. F. 25 g G. 35 g H. 52 g J. 62 g oC TAKS 2 TEKS 8.10B
How do consumers interact with producers in an ecosystem? • Producers eat consumers • Consumers eat producers • Producers decompose consumers • Decomposers produce consumers TAKS 2 TEKS 7.12B
A forest ecosystem has an increase in rainfall so more wildflowers grow. The wildflowers support a greater number of butterflies. Lizards in the forest eat butterflies. The lizard population will most likely be affected by the increase in the butterfly population by the size of the lizard population – F. decreasing G. decreasing then increasing H. increasing J. staying the same TAKS 2 TEKS 8.11A
T t T t The Punnett square shows the genotype of two rose parents. T represents the allele for large thorns. The allele for small thorns is represented by t. What are the possible genotypes of the rose’s offspring? • Tt only • Tt and tt • TT and Tt • TT, Tt and tt TAKS 2 TEKS 8.11C
Humans brought domesticated cats to the island of Madagascar. Several types of ground-nesting birds became extinct after the cats arrived. Which kind of threat to native animals is this an example of? F. Foreign animal trade G. Habitat destruction H. Species introduction J. Unregulated hunting TAKS 2 TEKS 8.14B
All of the populations living within an area make up a(n) – • community • ecosystem • organism • species TAKS 2 TEKS 6.10C, 8.6C
What type of energy is transferred into chemical energy in the process of photosynthesis? F. chemical G. kinetic H. potential J. radiant TAKS 3 TEKS 7.8B
Which of the following elements would be the best conductor? • Au • C • Ne • S TAKS 3 TEKS 8.9B
Which two elements are most similar? F. H and O G. Fe and Co H. Li and F J. Mg and Sr TAKS 3 TEKS 8.9B
The formula that represents sodium chloride, commonly known as salt, is – • H2O • NaCl • SaLt • SoCh TAKS 3 TEKS 8.9C
This Bohr model represents the element – F. Carbon G. Fluorine H. Oxygen J. Neon TAKS 3 TEKS 8.8A
What part of the oxygen atom contains neutral particles? • Electrons • Electron clouds • Isotopes • Nucleus TAKS 3 TEKS 8.8A, 8.8B
Which of the following must be the same for every atom of the element hydrogen? F. Atomic mass G. Number of electrons H. Number of neutrons J. Number of protons TAKS 3 TEKS 8.8A, 8.8B
You find an object that is shiny and solid. It conducts heat and electricity. How would the object be classified? • noble gas • non-metal • metal • halogen TAKS 3 TEKS 8.9B
Which of the following is not a property of an atom? F. Color G. Electric charge H. Mass J. Number of protons TAKS 3 TEKS 8.8A, 8.8B
Which of the following changes is not a physical change? • Beating an egg • Making a tossed salad • Boiling water • Frying an egg TAKS 3 TEKS 6.7B, 8.9A
As the stored chemical energy in biomass is decomposed in a compost bin, what is most of the energy converted into? F. Heat G. Oxygen H. Soil J. Water TAKS 3 TEKS 6.8B
The tendency of an object at rest to remain at rest or an object in motion to remain in motion is known as – • friction • inertia • work • zero gravity TAKS 4 TEKS 8.7A