Physical Science for ProgressPrentice-Hall, 1970 - 626 σελίδες |
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Σελίδα 8
... kind of matter . This would be true if you had never seen the in- side of a hill and believed the earth to be the same all over . You know from experi- ence that the earth contains many kinds of matter . It is the source of all of the ...
... kind of matter . This would be true if you had never seen the in- side of a hill and believed the earth to be the same all over . You know from experi- ence that the earth contains many kinds of matter . It is the source of all of the ...
Σελίδα 148
... kinds of matter . Much of the water we use is part of some kind of solution . Vinegar or salt solutions are used to preserve foods . Solutions are also important to our in- dustries . □ Solutions are mixtures . Solutions are mixtures ...
... kinds of matter . Much of the water we use is part of some kind of solution . Vinegar or salt solutions are used to preserve foods . Solutions are also important to our in- dustries . □ Solutions are mixtures . Solutions are mixtures ...
Σελίδα 369
... kinds of rocks are the best sources of petroleum . These contain about 2.5 per cent organic material . Just how the living material becomes petroleum is not known . It is believed that at least some of the change from plant and animal ...
... kinds of rocks are the best sources of petroleum . These contain about 2.5 per cent organic material . Just how the living material becomes petroleum is not known . It is believed that at least some of the change from plant and animal ...
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UNIT | 49 |
distributors of the John Frankenheimer film Grand Prix A General Electric Company 337 bottom rightGeneral Electric | 92 |
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acid acting ACTIVITY added amount atoms beam become body called carbon causes cell charges chemical chemical change circuit color combining compounds connected contains copper determined direction distance earth effort electrical electrical charges electrons elements energy engine equal experiment explain facts feet FIGURE flow force fuel gain gives glass grams happens heat hour hydrogen inch increases ions iron kinds lamp laser layer length light liquid magnet mass materials matter means measure metal miles mirror molecules moon motion move nature needed object oxygen particles piece plane plate pole position pounds pressure produced push rays reflected resistance Result rock scientists shell side sodium solution sound space speed spring stars Study surface temperature Terms theory travels tube turns units waves weight wire