ISAT Science Prep

Which of these statements is true about the SHADOW of any object?

• The shadow cannot be larger than the object itself.

• The shadow cannot lie between the object and the source of light causing it.

• The shadow always forms on a flat surface.

• The larger the size of the source of light, the larger the shadow.

Tags

NGSS.MS-PS4-2

Suhani observed that wet roads dried up due to heat. She kept a bucket full of water out in the Sun to study the effect of heat on water. Around how long will it take for the water to completely dry off from the bucket?

• 1 hour

• 3 hours

• half a day

• several days

Tags

NGSS.MS-ESS2-4

NGSS.MS-PS1-4

Which of the following is the reason a shadow is formed?

• A shadow is formed when light is blocked by an object.

• A shadow is formed when an object is reflected by a mirror.

• A shadow is formed when a dark line comes out of an object.

• A shadow is formed when an object gives out a special kind of light.

Here is the picture of a camel. Rashid studies it and writes these points in his notebook. Which of them is NOT an OBSERVATION?

• A camel has a short tail.

• A camel has long and well-padded legs.

• A camel eats leaves of the neem tree.

• A camel has a hump on its back.

Tags

NGSS.4-LS1-1

his is a drawing of a bird's foot.

Where would you be MOST likely to find such a bird?

• a forest

• a lake

• a mountain

• a desert

Tags

NGSS.MS-LS2-1

Ramu buried the following in a corner of his garden to dispose them off:If the corner is dug up 5 years later, which of these is most likely to have remained the same?

• the broken egg shell

• dry leaves

• plastic carry bags

• fruit and vegetable peels

Tags

NGSS.MS-LS2-3

Vidya has to pick out the wastes that can be reused . Which among the following items would she choose?

• only glass bottle, newspaper, plastic trays

• only old medicines and banana peels

• only plastic trays and old medicines

• only glass bottle and newspaper

Tags

NGSS.MS-ESS3-3

One evening in Kajol's house there was no electricity supply for 2 hours. Which of these things would have still worked?

• Door bell

• Gas stove

• Air conditioner

• Television

Which of these will you use to closely observe an insect like a cockroach?

• 
• 
• 
• 

Indu weighed a brinjal and a tomato. She then baked them in a hot oven for about 15 minutes, and weighed them again after that.How would their weight have changed, and why?

• INCREASED, because they absorb heat during baking

• INCREASED, because they absorb water from the oven.

• DECREASED, because they lose water during baking.

• DECREASED, because a part of them burnt.

Tags

NGSS.MS-PS3-4

NGSS.MS-PS3-5