Grade 8 Intercampus STEAM-off - 2022

An atom is the smallest unit of matter that is made up of three major subatomic particles. Which of the following particles is positively-charged?

• An electron

• A proton

• A neutron

• A photon

A decagon has 10 sides. Work out the exterior angle of a regular decagon.

• 45 °

• 18 °

• 36 °

• 9 °

_____________ is an online word processor to create formal and informal documents and can work with other people.

• Microsoft word

• Google forms

• Google docs

• Google sheets

The “theory of evolution by natural selection" was proposed by Charles Darwin and one other scientist. Who was this other scientist?

Here is an expression: ( x+4)( x-6)Expand the two brackets. Write the answer as simply as possible.

• 2x - 24

_______________ is a web-based application that enables users to create, update, and modify spreadsheet and share data online.

• Google docs

• Google drive

• Google sheets

• Google forms

Humans have 46 chromosomes. How many PAIRS of chromosomes are there in a human egg cell?

Rounded to the nearest hundred, a length is 7300 km. The exact length is x km. Write down an inequality to show the possible values of x.

________________ is an online application create formal and informal presentations and can work with other people. Type your answer in capital letters.

What process allows the plants to make their own food through the use of solar energy, chlorophyll, water, and carbon dioxide?

• Photoshop

• Photosynthesis

• Photosynthetics

• Photography