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Tenth Grade (Grade 10) Science Questions

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Grade 10 :: Atomic Structure by Qalam
In a famous experiment conducted by Ernest Rutherford, positively charged alpha particles were scattered by a thin gold foil. Which of the following is a conclusion that resulted from this experiment?
  1. The nucleus is negatively charged.
  2. The atom is a dense solid and is indivisible.
  3. The mass is conserved when atoms react chemically.
  4. The nucleus is very small and the atom is mostly empty space
Grade 10 :: Biochemistry by dddiaper2
Amino acids determine a protein's shape
  1. True
  2. False
Grade 10 :: Reactions by Qalam
To balance a chemical equation, you may adjust the
  1. coefficients
  2. subscripts
  3. formulas of the product
  4. either of coefficients or subscripts
Grade 10 :: Magnetism and Electricity by medicaljedi
You rub a balloon on a piece of carpet and the balloon becomes positively charged. Which of following explains the positive charge on the balloon?
  1. electrons are transferred from balloon to carpet
  2. electrons are transferred from carpet to balloon
  3. protons are transferred from balloon to carpet
  4. protons are transferred from carpet to balloon
Grade 10 :: Evolution by Drv00d00
During a study session about evolution, one of your fellow students remarks, "The giraffe stretched
its neck while reaching for higher leaves; its offspring inherited longer necks as a result." Which
statement is most likely to be helpful in correcting this student's misconception?
  1. Characteristics acquired during an organism's life are generally not passed on through genes.
  2. Spontaneous mutations can result in the appearance of new traits.
  3. Only favorable adaptations have survival value
  4. Disuse of an organ may lead to its eventual disappearance.
  5. If the giraffes did not have to compete with each other, longer necks would not have been passed on to the next generation.
Grade 10 :: Phases of Matter by Qalam
The formation of frost is an example of
  1. condensation
  2. evaporation
  3. deposition
  4. melting point
Grade 10 :: Genetics by Drv00d00
Each box inside a punnett square represents one
  1. allele
  2. parent
  3. dominant trait
  4. offspring
Grade 10 :: Genetics by Drv00d00
Genotype describes
  1. when two alleles of a particular gene are the same
  2. the set of alleles that an organism has
  3. different versions of a gene
  4. none of the above
Grade 10 :: Properties of Matter by Qalam
Surface tension is
  1. skin on the surface of the liquid
  2. the tendency of the surface of the liquids to decrease the area
  3. the spontaneous mixing of two substances
  4. the same as vapor pressure
Grade 10 :: Skin Skeleton and Muscles by Junelaw
What two bones are associated with the ankle joint?
  1. the distal epiphyses of the tibia and fibula
  2. tibia and femur
  3. femur and pelvic girdle
  4. proximal epiphyseal plate of the femur and the distal diaphysis of the ulna
Grade 10 :: Skin Skeleton and Muscles by Junelaw
The proximal epiphysis of the tibia bone contacts what two things?
  1. the distal epiphysis of the femur and distal epiphysis of the fibula
  2. the distal epiphysis of the humerus and the medial surface of the ulna
  3. the compact bone of the clavicle and the lateral surface of the humerus
  4. the distal epiphysis of the femur and the proximal epiphysis of the fibula
Grade 10 :: Cell Theory
The process during cell division in which the nucleus of a cell is divided into two nuclei
  1. Interphase
  2. Cell Phase
  3. Fission
  4. Mitosis
  5. Cytokinese
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