WorksheetsGr2-Science-Half yearly 2021- Paper 2
Total questions: 20
Worksheet time: 3600secs
During water cycle the water vapor in the air gets cold and forms tiny droplets of water. These droplets join together to form _____________.
Wind
Clouds
Water vapor
Smoke
1. Which features can a scientist use to identify an amphibian? Select 3
has a backbone
has no backbone
has smooth, moist skin
has scales or plates on skin
breathes first with gills and then with lungs
The continuous movement of water from Earth’s surface to the atmosphere and back to the Earth’s surface is described as:
Water cycle
Water collection
Cloud formation
Water preservation
__________ is an organism that only eats meat for energy.
Carnivore
Omnivore
Herbivore
None of the above
Choose the correct statement
Bones are hard and rigid.
Bones are flexible and hard.
Bones are flexible and soft.
Bones are hard and soft.
Asia saw a small animal in her backyard. She observed the animal had a backbone and a long tail, and its body was covered with scales. What is the classification for this animal?
bird
mammal
reptile
amphibian
What are clouds made up of?
Smoke
Wind
Tiny droplets of water
None of the above
Which states of matter do NOT have a definite shape?
gas, matter, and solid
gas and liquid
solid and liquid
None of the above
What can change a liquid into another state of matter?
heating
changing containers
mixing with salt
all of the above
Which animal group is warm-blooded, covered in hair or fur, feeds milk to their babies, and born alive?
Amphibians
Reptiles
Mammals
Birds
How do bones help our body?
Bones and muscles together help us to write, walk, run and kick.
They give shape and support to our body.
They protect our internal organs.
All of the above
Neha poured some water in a vessel and placed it for boiling on the stove. After sometime she saw that the level of water reduced. Which process is being demonstrated by Neha?
Water changes from a solid to a liquid.
Water changes from a gas to a liquid.
Water changes from a liquid to a gas.
None of the above
Which of these best describes a gas?
My particles are packed tightly together. I keep my shape.
My particles are loosely packed. I take the shape of my container.
My particles have lots of room. I try to spread out in every direction.
My particles are loosely packed. I keep my shape.
Which of the following is a correct statement about posture?
Most often we are aware of our own posture.
Posture refers to just the position of our head,
.
Our body holds certain postures without us even realizing it.
Only our muscles play a role in posture.
This type of eater has large, flat teeth used to grind down their food.
Herbivore
Omnivore
Carnivore
None of the above
What are the pollutants in water?
Oxygen released by the fish.
Chemicals that make water dirty and unsafe.
Things that make water cost a lot of money.
Things that cause water to dry up.
While building a sand castle, Ravi was gathering sand and pouring it into a container. Based on the situation what can you infer?
Sand is liquid
Sand is solid
Sand is neither solid nor liquid.
Sand is both solid and liquid.
Jason is eating an ice-cream as he walked to the beach. What is happening to Jacob’s ice cream when it changes from a solid to a liquid?
freezing
melting
burning
evaporating
A scientist studies a sample of swamp water. She finds that there are many dead plants and fish in the water. ________ in the water could be the main cause of this.
Presence of oxygen and carbon dioxide in the water.
Presence of mud in the water.
Litter and pollution in the water.
Presence of pebbles and sand in the water
Jessica’s mother asks her to wash her t-shirt and put it outside in the hanger. Next day Jessica notices that her wet t-shirt has turned crisp and dry. Which change of state was observed by Jessica?
gas changed into liquid
solid turned into gas
liquid changes to solid
liquid turned to gas
