Quiz about 2nd Grade Science Review

Question 1

The pool ball and the ice cube are both hard. What is another property that they share?

Accepted Answer

Smooth

Answer

Bumpy

Answer

Rough

Answer

Cold

Question 2

Which of these will change in a freezer after one hour?

Accepted Answer

Water

Answer

Popcorn

Answer

Chocolate Chips

Question 3

A tornado is which type of change?

Accepted Answer

A change caused by nature

Answer

A change caused by humans

Answer

A change caused by animals

Question 4

The lifecycle of a turtle is shown. What is a question that asks about the sequence or order of the stages in this lifecycle?

Accepted Answer

What stage of the lifecycle happens directly after hatching?

Answer

Where does turtles lay their eggs?

Answer

How big do the adult turtles get?

Answer

How long does it take for a turtle to hatch?

Question 5

Sophia wants to investigate the life cycle of a carrot. Which of the following should she do? Choose the BEST answer

Accepted Answer

Plant a carrot seed and record her observations over time.

Answer

Buy different types of carrots and record how they are alike and different.

Answer

Plant a carrot seed and give it to her neighbor as a present.

Answer

Research carrots on the internet

Question 6

The brick and the vent both share ___________ and ___________ properties.

Accepted Answer

Hard and Bumpy

Answer

Rectangle and Soft

Answer

Hard and Smooth

Question 7

Zora is making a list of objects that have the same property. What would another object be added to her list?

Piece of scratchy carpet, sand paper, _______

Accepted Answer

Wood Stick

Answer

Tissue

Answer

Teddy Bear

Answer

Cotton Ball

Question 8

Mrs. Romero's class sorted objects into groups. One group of objects had a marble, a glass cup, a dime, and a key. Why were these objects in the same group?

Accepted Answer

All the objects are hard

Answer

All the objects are the same size

Answer

All the objects are flexible

Answer

All the objects are the same temperature

Question 9

_________ will melt quickly when heat is added to it.

Accepted Answer

Chocolate Chips

Answer

Water

Answer

Popcorn

Question 10

Megan says that chocolate chips melting is irreversible because they turn into a liquid and stay that way. Is she correct?

Accepted Answer

Megan is not correct. The change is reversible. You can put the melted chocolate into the freezer to cool down which will make the chocolate solid again.

Answer

Megan is correct. The change is irreversible. Once the chocolate is melted into a liquid, it will always be a liquid.

Answer

Megan is correct because you can still eat chocolate even if its melted.

Question 11

Which is an example of pollution?

Accepted Answer

Throwing trash in the river

Answer

A hurricane

Answer

Cutting down trees

Question 12

What is de-forestation?

Accepted Answer

Cutting down trees

Answer

Forest Fires

Answer

Pollution

Question 13

What is an example of a change by people?

Accepted Answer

Construction

Answer

Tornado

Answer

Wild fire

Question 14

Jessica and Kendall were looking up at the moon and she noticed it looked like the picture shown below. For a whole week they observed the moon changing in the sky. They wondered if the moon was changing its shape. Why does the moon appear to change shape?

Accepted Answer

As the earth rotates, the sun reflects off different amounts of the moon causing it to change shape.

Answer

More of the moon gets hidden behind a cloud so you see different amounts of the moon

Answer

The moon changes shape because it gets darker as the month goes but no one knows why.

Question 15

Marta was playing outside when her mom called her in to eat dinner. They usually eat dinner at 7:30 PM. Marta was confused why her mother called her in so early because the Sun was still out. When Marta checked the clock, it said 7:30 PM. What season was it MOST likely?

Accepted Answer

Summer

Answer

Spring

Answer

Winter

Answer

Fall

Question 16

Students were tasked with developing models of life cycles of animals in local communities. One student made a life cycle of a frog and another student made a life cycle of an insect. How are these life cycles similar?

Accepted Answer

Both of these cycles have adults that lay eggs

Answer

Both of these cycles have the exact same type of steps but result in a different animal.

Answer

Both of these cycles have animals that can swim in water once during their lifetime.

Answer

Both of these cycles have green animals.

Question 17

A teacher asks students to investigate the lifecycle of a flower. Which of the following would be the BEST idea for the student to do?

Accepted Answer

Plant a seed by a window and keep the plant watered.

Answer

Examine different flowers around the school.

Answer

Go to the library and check out a book about flowers.

Answer

Plant a seed inside a classroom and wait for it to grow.

Question 18

A student says the best way to observe a plant's lifecycle is to observe a plant that has recently sprouted from the ground and measure the amount it grows in a certain amount of time. What revisions would you tell the student in order to observe more of the plant's lifecycle?

Accepted Answer

Start with a seed, plant it, and water it to see how it will sprout.

Answer

Observe a fully grown plant in order to see how tall the plant will be

Answer

Start with a seed, plant it, and dig it out of the ground once it begins to grow.

Answer

Observe many different types of plants to see the similarities and differences in plants.

2nd Grade Science Review

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