Week 1 Class 2

All matters are visible.

• True

• False

• No idea

Anything that takes up a space and has a mass are matters

• True

• False

• No idea

Which of the following is not matter?

• A cat

• Helium

• Gold Foil

• Dream

Calculate the Volume of a block: Length=10cm, Width=6cm, Height=3cm

• 18cm^3

• 180cm^3

• 19cm^3

• 60cm^3

In a gold atom, which particles have negative charge?

• Proton

• Neutron

• Electron

• Quark

Which of the following is incorrect about STEM?

• When teaching STEM, we aim helping learners to develop an understanding of how to explore the world and strategies for solving problems

• Every STEM project needs to involve all aspects of STEM

• Researchers in STEM have various ways to share information and strategies with each other.

Which of the following about Lab safety rules is False?

• Unused chemicals should never be put back in the original bottle

• We don't need safety goggles if we are not doing boiling or burning in science labs

• We should examine beakers, flasks, and test tubes before using.

• We should not touch or taste any substances in science labs.

What is the SI unit of mass?

• Grams

• Pounds

• Ounces

• Kilogram

In which scenario, only the weight of the object changes, but mass not change?

• cutting hair

• Having breakfast

• Moving from Earth to the Mars

• Having diarrhea