| How plants move |
1974 |
Peter Boulton |
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| How plants help us: observing things around us |
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| How plants feed |
1934 |
Agnes Mary Field |
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| How pine trees reproduce |
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| How our two party system operates |
1960 |
Cinecraft Productions |
20 min |
16mm |
B&W |
Sound |
| How much land does a man need? |
1886 |
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| How much is enough |
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| How much does the earth weigh?: measurement and mass |
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| How much cooperation? |
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| How much affection? |
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| How motion pictures move and talk ▶ |
1937 |
Bell & Howell Company |
10 |
16mm |
B&W |
sound |
| How Mole got his trousers |
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| How many stars |
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| How many members in a set |
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| How long is a minute? |
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| How lightning shatters wood : the primeaval steam engine |
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| How life begins |
1968 |
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| How level is sea level |
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| How its surface changes |
1956 |
Coronet Films |
10 min |
|
B&W |
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| How it works |
1954 |
John Durst |
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| How it happens |
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| How it happened |
1913 |
William Duncan |
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B&W |
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| How insects help us |
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| How green plants make and use food. - Rev. ed. |
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| How good is a 'good guy'? |
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| How fibres are spun |
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| How far how soon? (TEFC) |
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| How electricity is produced |
1960 |
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| How Effective Is Your Reading? ▶ |
1951 |
Coronet Films |
11 |
16mm |
Color |
sound |
| How does it feel? |
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| How does a rainbow feel? |
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| How does a computer work? |
1981 |
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| How does a candle burn? |
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| How do you write apple? |
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| How do you read? (TEFC) |
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| How do you read? |
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| How do you look when it counts? |
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| How do you drive? |
1960 |
Royal Canadian Air Force (sponsor) |
26 min |
16mm |
B&W |
Sound |
| How do children think? |
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| How death came to earth. ▶ |
1972 |
National Film Board of Canada. |
500 |
16mm |
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sound |
| How clear the hot springs bubble |
1960 |
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| How Britain votes |
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| How blood clots |
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| How behavior grows |
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| How babies are born |
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| How atoms combine [B&W] |
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| How atoms combine |
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| How astronomers study the universe. - 2nd ed. |
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| How animals move: fins and things |
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| How animals move |
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