math sci buzzer roound

​math & sci buzzer round

By Hania Shafi - 99404/TCHR/PCK

Open Ended

If one right angle is 90 degrees , then how many right angles make a straight angle? 

What happens to the brightness of bulbs in a series circuit when another bulb is added?

Open Ended

The number of angles in triangle are?

Open Ended

The perimeter of a square is 40 cm. How long are its sides?

Open Ended

When you slice a cube horizontally through the middle, what shape is the cross section?

Open Ended

Which is greater: 3/8 or 5/8

Open Ended

If 4/9​ of a chocolate bar weighs 36 grams, how much does the entire chocolate bar weigh?

Open Ended

9 is 25% of what number 

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The sum of two consecutive integers is 35. What are the integers?

Open Ended

Removing decomposers from an ecosystem would eventually cause what key cycle to break down?

Open Ended

 A bouncing ball reaches a lower height each time. List two forms of energy loss?  

Open Ended

A water tank holds 150 L of water. If you fill it to 2/5 of its capacity, how much water is in the tank?

Open Ended

A metal door expands and becomes hard to close on a hot day. Which property of matter explains this?

There are 4 forces applied on a box, in what direction the box must move? 

Open Ended

If 2x – 5 = 9, find x.

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Why does a rainbow appear only when the sun is behind you and rain is in front of you?

​Which part of the plant transports manufactured food from leaves to other parts?

Open Ended

Why do astronauts on the Moon weigh less even though their mass is the same? 

Open Ended

A plant kept under green light shows stunted growth. Why?

Open Ended

If sound waves could travel in a vacuum, what phenomenon in space would become possible?

What type of joint allows movement in all directions?