What is astatine: a non-metal, a metalloid, or a metal?

What makes sinkholes form?

Which type of force holds galaxies together?

Give an example of where you use pressure in your daily life?

If an egg is a model of the Earth, match each part of the egg to the part of Earth it represents.

What happens to shapes that break the rules

What energy do electrons have when they are farther away from the nucleus?

200 525000 lololo Boat A is 10 km north of a port. Boat B is 5 km east of the same port. Boat A sails in a straight line towards boat B. Work out the bearing on which boat A sails.

Is Li greater than He on the periodic table?

White light falls on a yellow filter, if: (a) A green filter is placed behind a yellow filter, what is the colour of the light that will emerge from the green filter?

Calculate the energy equivalent in joules of the mass of a proton. [Show all work, including the equation and substitution with units.]