Similarly with chemical elements, students answered that atoms differ from each other by their mass (question 6, over 70% of correct answers). ... There were 70% correct answers in grade 9, 81% in grade 10, 88% in grade 11, and 81% in grade 12. ... knowledge of chemistry Table 1 shows the means and standard deviations of verbal-, mathematical-, spatial- and reasoning abilities in different grades.

Title | : | Trames |

Author | : | |

Publisher | : | - 2003 |

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