| Class VII |
Science |
Curiosity |
7 |
transfer are involved when this device is used for cooking and warming up the room. Bukhari Reprint 2026-27 You have learnt in the Grade 6 Science ... |
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| Class VII |
Science |
Curiosity |
7 |
cycle (Fig. 7.9). Thus, the water cycle helps in redistributing and r u replenishing water in rivers, lakes, and oceans. It also serves to C conser... |
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| Class VII |
Science |
Curiosity |
7 |
with Seepage of water Seepage of water (very slow/slow/fast) (very slow/slow/fast) Bottle 1 (Clay) Bottle 2 (Sand) Bottle3(Gravel) Reprint 2026-27 ... |
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| Class VII |
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Curiosity |
7 |
example, in Ladakh, people have developed innovative ways to conserve e u water by making ice stupas (Fig. 7.13) during the winters. a N i SCIENCE ... |
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| Class VII |
Science |
Curiosity |
7 |
radiation. Processes of conduction and convection require a medium for heat transfer but no medium is required for the radiation ? process. The... |
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| Class VII |
Science |
Curiosity |
7 |
u C (b) Pins I and II will fall earlier than pins III and IV Fig. 7.15: Heat (c) Pins I and II will fall later than pins III and IV transfer set-up... |
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| Class VII |
Science |
Curiosity |
7 |
or Fig. 7.16b) will record a higher temperature? Explain. Thermometer Thermometer Water Water Burning Burning candle candle Fig. 7.16(b) Fig. 7.16(... |
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| Class VII |
Science |
Curiosity |
8 |
Measurementof TimeandMotion Prerna and her younger sister are watching a sports channel on television. Prerna enjoys running and she has been decla... |
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| Class VII |
Science |
Curiosity |
8 |
Using a watch, measure the time it takes for the pendulum to complete 10 oscillations. Record the time in Table 8.1. Repeat this activity 3–4 tim... |
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| Class VII |
Science |
Curiosity |
8 |
find ways of knowing the time of day. So, they made many devices which helped them to measure smaller intervals of time within a day. Some of these... |
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| Class VII |
Science |
Curiosity |
8 |
time’, e requiring a correction to determine Indian Standard Time. u a e Should we make a simple water clock? M A ctiity8 .: Letu sco nstruct Tak... |
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| Class VII |
Science |
Curiosity |
8 |
development of the sinking bowl water clock (Fig.8.2b),orGhatika-yantra,firstmentionedbyAryabhata,andthen in several astronomical texts later. Time ... |
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| Class VII |
Science |
Curiosity |
8 |
the pendulum) n suspended from a rigid oscillatory motion of an eraser hung e support by a long thread with a thread. Is the pendulum m as shown in... |
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| Class VII |
Science |
Curiosity |
8 |
out if its time period is almost the same. Repeat this with swings of different lengths. Find out how the time period changes with increasing length... |
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| Class VII |
Science |
Curiosity |
8 |
at a place. This property is used in the measurement of time. Reprint 2026-27 111 Allclocks,oldormodern,arebasedonsomeprocessrepeating continuously... |
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| Class VII |
Science |
Curiosity |
8 |
century. A 24-hour-long day was, thus, divided into 60 equal ghatis. Reprint 2026-27 A cti iy 8.3:Let us i entify Look at the wall clock shown in... |
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| Class VII |
Science |
Curiosity |
8 |
them? C Reprint 2026-27 113 n t o M n a m T o t e m r s e Fig. 8.10: Boys running a race on a straight track M Someone who is ahead of others at so... |
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| Class VII |
Science |
Curiosity |
8 |
bicycle. Calculate the speed of the bicycle in m/s. Solution: Speed of the bicycle = Distance covered Time taken = 3.6 km 15 min 3.6km ×000 m km = ... |
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| Class VII |
Science |
Curiosity |
8 |
can write this equation in a different form to calculate the a e distance covered by an object, if we know its speed and the time M taken, by using ... |
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| Class VII |
Science |
Curiosity |
9 |
LifeProcesses in Animals If your food is fully digested before you eat again, you won’t need medicine for pain. (Thirukkural 942) In the Grade 6 Sc... |
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| Class VII |
Science |
Curiosity |
8 |
noticed that some people seemed to be running at the same speed during that distance while some people would speed up or slow down. How were their ... |
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| Class VII |
Science |
Curiosity |
8 |
non-uniform linear motion. n In Table 8.3, data are given for the distances travelled by two m trains, X and Y, between the time 10:00 AM and 11:00... |
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| Class VII |
Science |
Curiosity |
8 |
car that travels 150 metres in 10 seconds. Express your answer in km/h. 2. A runner completes 400 metres in 50 seconds. Another runner completes th... |
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| Class VII |
Science |
Curiosity |
8 |
uniform or non-uniform? Provide three examples from your n experience to support your answer. a e 10. Data for the motion of an object are given in... |
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| Class VII |
Science |
Curiosity |
9 |
f o 9.1.1 Digestion in human beings o b Let us trace the journey of food inside our body as it passes x through different parts of the alimentary ca... |
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