TIMSS SCIENCE MOCK TEST

What movement causes the night and day on Earth?

• the earth traveling around the sun

• the earth turning on its axis

• the moon traveling around the earth

• the sun turning on its axis

Tags

NGSS.MS-ESS1-1

A town is building a factory to turn salt water into drinking water. where should the factory be built?

• place A

• place B

Tags

NGSS.MS-ETS1-1

NGSS.MS-ETS1-2

Here is a list of human activities that can either help or harm the environment. tick only those boxes which will help the environment.

• creating green parks

• using plastic bags

• watering gardens with rainwater

• travelling by airplane

• hunting rare animals

Tags

NGSS.MS-ESS3-3

NGSS.MS-LS2-5

Dolphins and bats are two kinds of mammals that can make sounds that humans cannot hear. What do dolphins and bats use the sound for?

• to repel predators

• to locate prey

• to communicate with humans

• to improve thier eyesight

The picture shows a food web.

what is the relationship between the hawk and the fox?

• the hawk preys on the fox

• the fox preys on the hawk

• the hawk and the fox are competitors.

Tags

NGSS.MS-LS2-2

This animal is an aye-aye. It climbs trees at night to look for food. It eats insects that live in hollow branches of the trees. Some aye-aye features are labelled in the picture.

Why do you think the aye-aye has large ears?

• to detect insects moving inside the branches

• for reaching to the insects inside the branches

• for making holes in branches

• to help in jumping between the branches

Tags

NGSS.3-LS4-2

NGSS.4-LS1-1

NGSS.4-LS1-2

Students planted tomato seedlings in three pots.

They could choose to place the pots either near a window where they would be in the sun all day or on top of a bookcase where they would not be in the sun at all.

They could also choose to water the plants once a day or once a month.

which tomato plant do u predict will grow faster?

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Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

Paul bought a cup of ice-cream.

After a while he noticed that the ice-cream at the edge of the cup was starting to melt, but the ice-cream in the middle of the cup was still solid.

Why did the ice-cream at the edge of the cup melt first?

Answer explanation

Ice cream in a cup can melt towards its edges because heat is transferred more easily through the edges of the cup, where it is in contact with the warmer air and the surface on which the cup is placed. This causes the temperature of the edges of the ice cream to increase, which then causes them to melt faster than the center portion of the ice cream. This effect is called thermal conduction. Additionally, as the ice cream melts, it can also flow towards the edges of the cup due to gravity.

Tags

NGSS.MS-PS1-4

Students in a science class are investigating how fast the sugar will dissolve in water under different conditions. They designed four different setups as shown. What are the two setups the students can use to test if increasing temperature has an effect on how quickly the sugar dissolves.

Select only two boxes.

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Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4

NGSS.MS-PS3-4

The picture shows a magnet held above the table. One end of the piece of thread is tied to a steel paper clip. The other end of the thread is fastened to the table.

Explain why the paper clip is in the air between the magnet and the table.

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-3

NGSS.MS-PS2-5