quiz Qs from week 1 - 7

A light year is the _____light travels in one Earth year.

A covalent bond is a chemical bond that involves sharing of electrons between atoms.

How many protons does mercury have?

Cosmic background radiation can be seen on your TV.

Most abundant elements in the human body are:

Which of the following is a good testable hypothesis?

What was one of the first animals appeared on Earth?

Which of the element below is a noble gas?

Who was the first scientist to be knighted for his/her work?

Cepheid variable stars were used to calculate ______.

Which of the following is the shallowest layer of Earth?

All the elements on the periodic table are naturally occurring elements.

Mesozoic era is often referred to as what?

What type of chemical bond is formed between two nitrogen atoms? (Hint: nitrogen is non-metal)

An isotope is a variation of the same element.

Which of the following about Edward Hubble is true?

What were the first elements in the universe?

If you change the number of _____, you change the identity of the element.

Theory of special relativity was published before theory of general relativity.

Cambrian explosion is an event in which a giant asteroid struck the Earth.

What is a placebo?

An isotope is a variation of the same element.

Which is the weakest of all fundamental force?

The universe is expanding.

The sun is a "late-bloomer" in the milky way.

Which of the following is a dwarf planet?

Light is _____.

Which of the following is NOT an example of matter?

Based on the bottom-up formation of galaxy, formation of stars happens before formation of galaxies.

The elements on the periodic table are arranged in order of decreasing atomic number.

Albert Einstein received a Nobel Prize for __________.

According to Democritus, an apple is made up of:

In the beginning, the universe was very cold.

In our coffee-plant experiment, what was the responding variable? (Hint: what did we measure?)

____ is found at the center of the milky way galaxy.

A scientific law explains why something happens.