Answer the question below:   Will adds salt to the pot of water. The water's volume is now less dense or denser?    Assuming that:  If salt is added to a volume of water, there are more molecules in the same volume, so the water is denser.
denser

Answer the question below:   If you spend a lot of time out in the sun then getting skin cancer is less likely or more likely?    Assuming that:  More UV rays increase skin cancer rates.
more likely

Answer the question below:   A larger boulder will roll down a hill faster or slower than a smaller one?    Assuming that:  An object has greater momentum if it has greater mass, greater velocity, or both.
faster

Answer the question below:   When astronomers noticed a doubling of Sun spot activity, did they predict that the Earth's temperature would increase or decrease??    Assuming that:  When there are more sunspots the Sun is more active and there are more solar storms and more of the Sun's energy reaches the Earth.
increase