Science 8 - STAAR Semester 1 Review

What is the charge of the nucleus of sodium (Na) with +11 protons and 12 neutrons?

Which of the following environmental factors is abiotic?

How many atoms and elements are in the chemical formula BaC₂O₃N₄

In the food web, what organisms are herbivores?

What unit is used to measure distance in space?

Which 2 elements have similar chemical properties, such as valence electrons and ionic charge?

If an atom has 50 protons and an atomic mass of 119, what is the number of neutrons?

If a new virus kills most of the carrots, what will happen next in the food web?

According to the HR-diagram, which type of star is the brightest and hottest?

What type of spectral wave has a wave length of 10^-2 meters and frequency of 10⁹ hertz?

What does the atomic number tell you about an element?

Group number is used to show the number of valence electrons. How many does chlorine have?

Which Newton law of motion is describing inertia?

Mosquitoes suck! What type of symbiotic relationship do they have with most organisms?

What evidence was NOT used to show the theory of continental drift and plate tectonics?

On the periodic table, what is the atomic mass of Nitrogen, and how many neutrons does it have?

What land form below is not created by a converging plate boundary?

What element is represented by the Bohr model?

Which direction will a river flow from the top of this hill?

What is the force of an object with a mass of 100 kg and an acceleration of 4 m/s²