Periodic Assessment Test
Std – 7 Science January-2021
Time : 1 Hour Marks : 25
L.O.- Learning Outcome
L.O. Draws graph and does its interpretation.
Q-1 Draw a distance - time graph from the below given information and answer the questions
given below.
(5)
TIME(HOUR) 0 2 4 8 12
DISTANCE(KM) 0 50 150 150 250
1. What type of motion is observed in the substance during the time duration of 0 to 4
hours?
2. During which time duration is the substance seen in stable state?
L.O. Classifies substance and organisms on the basis of their properties, composition and
functions.
Q-2 Distinguish the below given properties into Aerobic respiration and Anaerobic respiration. (5)
1. Production of lactic acid at the end of respiration.
2. Respiration in muscles during heavy exercise.
3. Breakdown of food with the use of oxygen.
4. Production of water at the end of respiration.
5. Respiration seen in yeast.
L.O. Explains process and events.
Q-3 Do as directed.
1. Describe the various ways by which seeds are dispersed. Explain any one event. (3)
2. What will happen if there are no red blood cells and platelets in the blood? Explain. (2)
L.O. Draws labelled flowchart / diagram of organisms and process.
Q-4 Draw and label the diagram given below.
1. Systematic diagram of circulation. (3)
2. Self - pollination. (2)
L.O. Constructs samples using objects found around them and describes its working method.
Q-5 Describe how to make the following models with the help of objects found around you.
1. Sandclock model (3)
2. Stethoscope model
Answers
Answered by
5
Answer:
Its difficult
I can but how will I send it to you to check it
Answered by
3
Answer:
1. uniform motion
2.when the particular thing is in static motion
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